Home / 87,624.54-131,357.94-31,451.40

Finding the Fourth Proportional to 87,624.54, 131,357.94 and 31,451.40

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Solution

The fourth proportional to 87,624.54, 131,357.94 and 31,451.40 is: 47,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,624.54 : 131,357.94 = 31,451.40 : x
  2. Step 2: Convert to fraction form
    87,624.54/131,357.94 = 31,451.40/x
  3. Step 3: Cross multiply
    87,624.54x = 131,357.94 × 31,451.40
  4. Step 4: Simplify right side
    87,624.54x = 4,131,391,114.12
  5. Step 5: Solve for x
    x = 4,131,391,114.12/87,624.54
  6. Step 6: Final answer
    x = 47,148.79

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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.