Finding the Fourth Proportional to 71,646.88, 107,644.20 and 63,248.80
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Solution
The fourth proportional to 71,646.88, 107,644.20 and 63,248.80 is: 95,026.70
Step by Step Solution
- Step 1: Write the proportion equation
71,646.88 : 107,644.20 = 63,248.80 : x - Step 2: Convert to fraction form
71,646.88/107,644.20 = 63,248.80/x - Step 3: Cross multiply
71,646.88x = 107,644.20 × 63,248.80 - Step 4: Simplify right side
71,646.88x = 6,808,366,476.96 - Step 5: Solve for x
x = 6,808,366,476.96/71,646.88 - Step 6: Final answer
x = 95,026.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.