So the best way to do this In my personal opinion is to find how many apples per 1 peach you have so,
53 : 4 = 53/4 = 13.25 : 1
So you now know you have 13.25 apples for every 1 peach to now you can multiply 13.25 by how many peaches you have…
(13.25 : 1 ) x 8 = 106 : 8
Ava has 106 apples if she has 8 peaches.