Finding the Fourth Proportional to 86,284.08, 129,445.92 and 27,119.52
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Solution
The fourth proportional to 86,284.08, 129,445.92 and 27,119.52 is: 40,685.50
Step by Step Solution
- Step 1: Write the proportion equation
86,284.08 : 129,445.92 = 27,119.52 : x - Step 2: Convert to fraction form
86,284.08/129,445.92 = 27,119.52/x - Step 3: Cross multiply
86,284.08x = 129,445.92 × 27,119.52 - Step 4: Simplify right side
86,284.08x = 3,510,511,216.36 - Step 5: Solve for x
x = 3,510,511,216.36/86,284.08 - Step 6: Final answer
x = 40,685.50
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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.