Finding the Fourth Proportional to 101,759.40, 140,436.60 and 56,451.99
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Solution
The fourth proportional to 101,759.40, 140,436.60 and 56,451.99 is: 77,908.53
Step by Step Solution
- Step 1: Write the proportion equation
101,759.40 : 140,436.60 = 56,451.99 : x - Step 2: Convert to fraction form
101,759.40/140,436.60 = 56,451.99/x - Step 3: Cross multiply
101,759.40x = 140,436.60 × 56,451.99 - Step 4: Simplify right side
101,759.40x = 7,927,925,538.83 - Step 5: Solve for x
x = 7,927,925,538.83/101,759.40 - Step 6: Final answer
x = 77,908.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.