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Finding the Fourth Proportional to 87,951.50, 131,927.25 and 38,703.50

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Solution

The fourth proportional to 87,951.50, 131,927.25 and 38,703.50 is: 58,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.50 : 131,927.25 = 38,703.50 : x
  2. Step 2: Convert to fraction form
    87,951.50/131,927.25 = 38,703.50/x
  3. Step 3: Cross multiply
    87,951.50x = 131,927.25 × 38,703.50
  4. Step 4: Simplify right side
    87,951.50x = 5,106,046,320.38
  5. Step 5: Solve for x
    x = 5,106,046,320.38/87,951.50
  6. Step 6: Final answer
    x = 58,055.25

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Similar ratio
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1.5x scale

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.