Finding the Fourth Proportional to 86,609.76, 129,919.32 and 24,285.12
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Solution
The fourth proportional to 86,609.76, 129,919.32 and 24,285.12 is: 36,428.99
Step by Step Solution
- Step 1: Write the proportion equation
86,609.76 : 129,919.32 = 24,285.12 : x - Step 2: Convert to fraction form
86,609.76/129,919.32 = 24,285.12/x - Step 3: Cross multiply
86,609.76x = 129,919.32 × 24,285.12 - Step 4: Simplify right side
86,609.76x = 3,155,106,276.52 - Step 5: Solve for x
x = 3,155,106,276.52/86,609.76 - Step 6: Final answer
x = 36,428.99
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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.