Finding the Fourth Proportional to 79,755.77, 119,668.84 and 42,306.66
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Solution
The fourth proportional to 79,755.77, 119,668.84 and 42,306.66 is: 63,478.66
Step by Step Solution
- Step 1: Write the proportion equation
79,755.77 : 119,668.84 = 42,306.66 : x - Step 2: Convert to fraction form
79,755.77/119,668.84 = 42,306.66/x - Step 3: Cross multiply
79,755.77x = 119,668.84 × 42,306.66 - Step 4: Simplify right side
79,755.77x = 5,062,788,942.03 - Step 5: Solve for x
x = 5,062,788,942.03/79,755.77 - Step 6: Final answer
x = 63,478.66
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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.