Finding the Fourth Proportional to 75,956.40, 113,842.26 and 53,776.17
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Solution
The fourth proportional to 75,956.40, 113,842.26 and 53,776.17 is: 80,598.88
Step by Step Solution
- Step 1: Write the proportion equation
75,956.40 : 113,842.26 = 53,776.17 : x - Step 2: Convert to fraction form
75,956.40/113,842.26 = 53,776.17/x - Step 3: Cross multiply
75,956.40x = 113,842.26 × 53,776.17 - Step 4: Simplify right side
75,956.40x = 6,122,000,726.94 - Step 5: Solve for x
x = 6,122,000,726.94/75,956.40 - Step 6: Final answer
x = 80,598.88
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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.