Home / 87,049.62-120,126.78-50,757.84

Finding the Fourth Proportional to 87,049.62, 120,126.78 and 50,757.84

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Solution

The fourth proportional to 87,049.62, 120,126.78 and 50,757.84 is: 70,044.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,049.62 : 120,126.78 = 50,757.84 : x
  2. Step 2: Convert to fraction form
    87,049.62/120,126.78 = 50,757.84/x
  3. Step 3: Cross multiply
    87,049.62x = 120,126.78 × 50,757.84
  4. Step 4: Simplify right side
    87,049.62x = 6,097,375,878.96
  5. Step 5: Solve for x
    x = 6,097,375,878.96/87,049.62
  6. Step 6: Final answer
    x = 70,044.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.