Finding the Fourth Proportional to 77,818.48, 116,764.18 and 38,354.08
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Solution
The fourth proportional to 77,818.48, 116,764.18 and 38,354.08 is: 57,549.09
Step by Step Solution
- Step 1: Write the proportion equation
77,818.48 : 116,764.18 = 38,354.08 : x - Step 2: Convert to fraction form
77,818.48/116,764.18 = 38,354.08/x - Step 3: Cross multiply
77,818.48x = 116,764.18 × 38,354.08 - Step 4: Simplify right side
77,818.48x = 4,478,382,700.85 - Step 5: Solve for x
x = 4,478,382,700.85/77,818.48 - Step 6: Final answer
x = 57,549.09
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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.