Finding the Fourth Proportional to 115,864.20, 173,824.05 and 48,358.70
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Solution
The fourth proportional to 115,864.20, 173,824.05 and 48,358.70 is: 72,549.63
Step by Step Solution
- Step 1: Write the proportion equation
115,864.20 : 173,824.05 = 48,358.70 : x - Step 2: Convert to fraction form
115,864.20/173,824.05 = 48,358.70/x - Step 3: Cross multiply
115,864.20x = 173,824.05 × 48,358.70 - Step 4: Simplify right side
115,864.20x = 8,405,905,086.74 - Step 5: Solve for x
x = 8,405,905,086.74/115,864.20 - Step 6: Final answer
x = 72,549.63
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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.