Home / 87,998.82-131,939.91-31,831.54

Finding the Fourth Proportional to 87,998.82, 131,939.91 and 31,831.54

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Solution

The fourth proportional to 87,998.82, 131,939.91 and 31,831.54 is: 47,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,998.82 : 131,939.91 = 31,831.54 : x
  2. Step 2: Convert to fraction form
    87,998.82/131,939.91 = 31,831.54/x
  3. Step 3: Cross multiply
    87,998.82x = 131,939.91 × 31,831.54
  4. Step 4: Simplify right side
    87,998.82x = 4,199,850,522.76
  5. Step 5: Solve for x
    x = 4,199,850,522.76/87,998.82
  6. Step 6: Final answer
    x = 47,726.21

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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.