Home / 87,997.50-131,992.65-31,838.94

Finding the Fourth Proportional to 87,997.50, 131,992.65 and 31,838.94

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Solution

The fourth proportional to 87,997.50, 131,992.65 and 31,838.94 is: 47,757.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,997.50 : 131,992.65 = 31,838.94 : x
  2. Step 2: Convert to fraction form
    87,997.50/131,992.65 = 31,838.94/x
  3. Step 3: Cross multiply
    87,997.50x = 131,992.65 × 31,838.94
  4. Step 4: Simplify right side
    87,997.50x = 4,202,506,063.79
  5. Step 5: Solve for x
    x = 4,202,506,063.79/87,997.50
  6. Step 6: Final answer
    x = 47,757.11

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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.