I'm not exactly sure of what you mean, but if the number (for example) were 2,3, and 6 you could say 2 and 6 multiply to get 6 and 6 divided by 2 would be 3 and so on. You could do this with any operation. Hope this helps, and sorry if this wasa little unclear.
80/16 = x/48
80*48/16 = x
x = 240
the mural will be 240in in length
B/ 4 oranges for $1.52 I think.