Home / 87,390.90-131,089.25-24,211.65

Finding the Fourth Proportional to 87,390.90, 131,089.25 and 24,211.65

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Solution

The fourth proportional to 87,390.90, 131,089.25 and 24,211.65 is: 36,318.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,390.90 : 131,089.25 = 24,211.65 : x
  2. Step 2: Convert to fraction form
    87,390.90/131,089.25 = 24,211.65/x
  3. Step 3: Cross multiply
    87,390.90x = 131,089.25 × 24,211.65
  4. Step 4: Simplify right side
    87,390.90x = 3,173,887,246.43
  5. Step 5: Solve for x
    x = 3,173,887,246.43/87,390.90
  6. Step 6: Final answer
    x = 36,318.28

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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.