Home / 87,330.48-131,006.78-28,164.84

Finding the Fourth Proportional to 87,330.48, 131,006.78 and 28,164.84

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Solution

The fourth proportional to 87,330.48, 131,006.78 and 28,164.84 is: 42,250.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.48 : 131,006.78 = 28,164.84 : x
  2. Step 2: Convert to fraction form
    87,330.48/131,006.78 = 28,164.84/x
  3. Step 3: Cross multiply
    87,330.48x = 131,006.78 × 28,164.84
  4. Step 4: Simplify right side
    87,330.48x = 3,689,784,997.62
  5. Step 5: Solve for x
    x = 3,689,784,997.62/87,330.48
  6. Step 6: Final answer
    x = 42,250.83

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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.