Finding the Fourth Proportional to 47,387.71, 71,081.66 and 12,327.31
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Solution
The fourth proportional to 47,387.71, 71,081.66 and 12,327.31 is: 18,490.99
Step by Step Solution
- Step 1: Write the proportion equation
47,387.71 : 71,081.66 = 12,327.31 : x - Step 2: Convert to fraction form
47,387.71/71,081.66 = 12,327.31/x - Step 3: Cross multiply
47,387.71x = 71,081.66 × 12,327.31 - Step 4: Simplify right side
47,387.71x = 876,245,658.13 - Step 5: Solve for x
x = 876,245,658.13/47,387.71 - Step 6: Final answer
x = 18,490.99
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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.