Home / 87,830.31-131,749.11-25,500.81

Finding the Fourth Proportional to 87,830.31, 131,749.11 and 25,500.81

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Solution

The fourth proportional to 87,830.31, 131,749.11 and 25,500.81 is: 38,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,830.31 : 131,749.11 = 25,500.81 : x
  2. Step 2: Convert to fraction form
    87,830.31/131,749.11 = 25,500.81/x
  3. Step 3: Cross multiply
    87,830.31x = 131,749.11 × 25,500.81
  4. Step 4: Simplify right side
    87,830.31x = 3,359,709,021.78
  5. Step 5: Solve for x
    x = 3,359,709,021.78/87,830.31
  6. Step 6: Final answer
    x = 38,252.27

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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.