A dance BFA is typically around 90 semester credits out of the 120 expected for a four year degree (average of 15 per semester). A BA might be more like 60 credits. Other majors are usually 50-60 credits (although engineering is closer to 80) and General Eds may be 10-30 depending on how many exemptions you have from APs.
So as you can see you would need something like 150-160 credits to double major with a BFA even if you have a bunch of APs coming in. That’s what my D is doing, it has required one summer and then taking 20-22 credits per semester for most of the rest of her four years in college, so she is quite busy. Some colleges don’t allow that much overload and would require you to stay for 5 years. With a dance BA then a double major becomes much more straightforward.