Finding the Fourth Proportional to 86,748.30, 119,732.67 and 56,480.94
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Solution
The fourth proportional to 86,748.30, 119,732.67 and 56,480.94 is: 77,956.73
Step by Step Solution
- Step 1: Write the proportion equation
86,748.30 : 119,732.67 = 56,480.94 : x - Step 2: Convert to fraction form
86,748.30/119,732.67 = 56,480.94/x - Step 3: Cross multiply
86,748.30x = 119,732.67 × 56,480.94 - Step 4: Simplify right side
86,748.30x = 6,762,613,750.31 - Step 5: Solve for x
x = 6,762,613,750.31/86,748.30 - Step 6: Final answer
x = 77,956.73
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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.