Question

if 19-x,26-x,35-x and 50-x are in proportion, then X is​

Answer 1

Since we've :

(19-x):(26-x)::(35-x):(50-x)

or (19-x)/(26-x) = (35-x)/(50-x)

or (19-x)(50-x) = (35-x)(26-x)

or 950-19x-50x+(x×x) = 910-26x-35x+(x×x)

or 950-910+26x-19x+35x-50x+(x×x)-(x×x) = 0

or 40-8x=0

or x=5

Hence, x is 5.