Home / 87,831.97-131,728.26-40,401.52

Finding the Fourth Proportional to 87,831.97, 131,728.26 and 40,401.52

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Solution

The fourth proportional to 87,831.97, 131,728.26 and 40,401.52 is: 60,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,831.97 : 131,728.26 = 40,401.52 : x
  2. Step 2: Convert to fraction form
    87,831.97/131,728.26 = 40,401.52/x
  3. Step 3: Cross multiply
    87,831.97x = 131,728.26 × 40,401.52
  4. Step 4: Simplify right side
    87,831.97x = 5,322,021,930.96
  5. Step 5: Solve for x
    x = 5,322,021,930.96/87,831.97
  6. Step 6: Final answer
    x = 60,593.22

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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.