Home / 87,831.01-131,726.81-40,400.54

Finding the Fourth Proportional to 87,831.01, 131,726.81 and 40,400.54

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Solution

The fourth proportional to 87,831.01, 131,726.81 and 40,400.54 is: 60,591.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,831.01 : 131,726.81 = 40,400.54 : x
  2. Step 2: Convert to fraction form
    87,831.01/131,726.81 = 40,400.54/x
  3. Step 3: Cross multiply
    87,831.01x = 131,726.81 × 40,400.54
  4. Step 4: Simplify right side
    87,831.01x = 5,321,834,706.53
  5. Step 5: Solve for x
    x = 5,321,834,706.53/87,831.01
  6. Step 6: Final answer
    x = 60,591.75

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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.