Finding the Fourth Proportional to 86,285.08, 129,447.42 and 27,120.52
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Solution
The fourth proportional to 86,285.08, 129,447.42 and 27,120.52 is: 40,687.00
Step by Step Solution
- Step 1: Write the proportion equation
86,285.08 : 129,447.42 = 27,120.52 : x - Step 2: Convert to fraction form
86,285.08/129,447.42 = 27,120.52/x - Step 3: Cross multiply
86,285.08x = 129,447.42 × 27,120.52 - Step 4: Simplify right side
86,285.08x = 3,510,681,343.06 - Step 5: Solve for x
x = 3,510,681,343.06/86,285.08 - Step 6: Final answer
x = 40,687.00
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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.