Home / 87,345.40-131,018.10-25,015.90

Finding the Fourth Proportional to 87,345.40, 131,018.10 and 25,015.90

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Solution

The fourth proportional to 87,345.40, 131,018.10 and 25,015.90 is: 37,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,345.40 : 131,018.10 = 25,015.90 : x
  2. Step 2: Convert to fraction form
    87,345.40/131,018.10 = 25,015.90/x
  3. Step 3: Cross multiply
    87,345.40x = 131,018.10 × 25,015.90
  4. Step 4: Simplify right side
    87,345.40x = 3,277,535,687.79
  5. Step 5: Solve for x
    x = 3,277,535,687.79/87,345.40
  6. Step 6: Final answer
    x = 37,523.85

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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.