Home / 87,620.70-131,421.33-25,291.20

Finding the Fourth Proportional to 87,620.70, 131,421.33 and 25,291.20

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Solution

The fourth proportional to 87,620.70, 131,421.33 and 25,291.20 is: 37,933.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,620.70 : 131,421.33 = 25,291.20 : x
  2. Step 2: Convert to fraction form
    87,620.70/131,421.33 = 25,291.20/x
  3. Step 3: Cross multiply
    87,620.70x = 131,421.33 × 25,291.20
  4. Step 4: Simplify right side
    87,620.70x = 3,323,803,141.30
  5. Step 5: Solve for x
    x = 3,323,803,141.30/87,620.70
  6. Step 6: Final answer
    x = 37,933.99

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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.