Finding the Fourth Proportional to 86,634.38, 129,956.16 and 27,474.68
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Solution
The fourth proportional to 86,634.38, 129,956.16 and 27,474.68 is: 41,213.48
Step by Step Solution
- Step 1: Write the proportion equation
86,634.38 : 129,956.16 = 27,474.68 : x - Step 2: Convert to fraction form
86,634.38/129,956.16 = 27,474.68/x - Step 3: Cross multiply
86,634.38x = 129,956.16 × 27,474.68 - Step 4: Simplify right side
86,634.38x = 3,570,503,910.03 - Step 5: Solve for x
x = 3,570,503,910.03/86,634.38 - Step 6: Final answer
x = 41,213.48
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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.