Finding the Fourth Proportional to 77,572.14, 107,061.09 and 47,374.98
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Solution
The fourth proportional to 77,572.14, 107,061.09 and 47,374.98 is: 65,384.52
Step by Step Solution
- Step 1: Write the proportion equation
77,572.14 : 107,061.09 = 47,374.98 : x - Step 2: Convert to fraction form
77,572.14/107,061.09 = 47,374.98/x - Step 3: Cross multiply
77,572.14x = 107,061.09 × 47,374.98 - Step 4: Simplify right side
77,572.14x = 5,072,016,997.53 - Step 5: Solve for x
x = 5,072,016,997.53/77,572.14 - Step 6: Final answer
x = 65,384.52
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1.5x scale
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.