Finding the Fourth Proportional to 76,425.68, 114,668.76 and 29,691.92
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Solution
The fourth proportional to 76,425.68, 114,668.76 and 29,691.92 is: 44,549.63
Step by Step Solution
- Step 1: Write the proportion equation
76,425.68 : 114,668.76 = 29,691.92 : x - Step 2: Convert to fraction form
76,425.68/114,668.76 = 29,691.92/x - Step 3: Cross multiply
76,425.68x = 114,668.76 × 29,691.92 - Step 4: Simplify right side
76,425.68x = 3,404,735,648.42 - Step 5: Solve for x
x = 3,404,735,648.42/76,425.68 - Step 6: Final answer
x = 44,549.63
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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.