Q Test whether 30,40, 35 and 60 are in proportionate - Maths - Fractions

Question

Q Test whether 30,40, 35 and 60 are in proportionate

Sanjari Kalantri · Accepted Answer

Dear Student,

For any four numbers a, b, c, and d to be in proportion (a:b::c:d), ad = bc
Thus, ad = 30 × 60 = 1800 and bc = 40 × 45 = 1800
So, ad = bc
Hence, 30, 40, 45 and 60 are in proportion, i
e, 30:40::45:60

Q. Test whether 30,40, 35 and 60 are in proportionate.