Finding the Fourth Proportional to 80,478.80, 120,717.60 and 24,318.80
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Solution
The fourth proportional to 80,478.80, 120,717.60 and 24,318.80 is: 36,478.02
Step by Step Solution
- Step 1: Write the proportion equation
80,478.80 : 120,717.60 = 24,318.80 : x - Step 2: Convert to fraction form
80,478.80/120,717.60 = 24,318.80/x - Step 3: Cross multiply
80,478.80x = 120,717.60 × 24,318.80 - Step 4: Simplify right side
80,478.80x = 2,935,707,170.88 - Step 5: Solve for x
x = 2,935,707,170.88/80,478.80 - Step 6: Final answer
x = 36,478.02
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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.