Finding the Fourth Proportional to 80,235.20, 120,318.68 and 24,083.28
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Solution
The fourth proportional to 80,235.20, 120,318.68 and 24,083.28 is: 36,114.68
Step by Step Solution
- Step 1: Write the proportion equation
80,235.20 : 120,318.68 = 24,083.28 : x - Step 2: Convert to fraction form
80,235.20/120,318.68 = 24,083.28/x - Step 3: Cross multiply
80,235.20x = 120,318.68 × 24,083.28 - Step 4: Simplify right side
80,235.20x = 2,897,668,459.67 - Step 5: Solve for x
x = 2,897,668,459.67/80,235.20 - Step 6: Final answer
x = 36,114.68
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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.