Home / 87,956.10-131,885.55-28,761.30

Finding the Fourth Proportional to 87,956.10, 131,885.55 and 28,761.30

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Solution

The fourth proportional to 87,956.10, 131,885.55 and 28,761.30 is: 43,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,956.10 : 131,885.55 = 28,761.30 : x
  2. Step 2: Convert to fraction form
    87,956.10/131,885.55 = 28,761.30/x
  3. Step 3: Cross multiply
    87,956.10x = 131,885.55 × 28,761.30
  4. Step 4: Simplify right side
    87,956.10x = 3,793,199,869.22
  5. Step 5: Solve for x
    x = 3,793,199,869.22/87,956.10
  6. Step 6: Final answer
    x = 43,126.06

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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.