Home / 87,788.91-131,704.33-28,624.64

Finding the Fourth Proportional to 87,788.91, 131,704.33 and 28,624.64

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Solution

The fourth proportional to 87,788.91, 131,704.33 and 28,624.64 is: 42,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.91 : 131,704.33 = 28,624.64 : x
  2. Step 2: Convert to fraction form
    87,788.91/131,704.33 = 28,624.64/x
  3. Step 3: Cross multiply
    87,788.91x = 131,704.33 × 28,624.64
  4. Step 4: Simplify right side
    87,788.91x = 3,769,989,097.12
  5. Step 5: Solve for x
    x = 3,769,989,097.12/87,788.91
  6. Step 6: Final answer
    x = 42,943.79

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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.