Home / 87,883.30-121,286.42-49,649.86

Finding the Fourth Proportional to 87,883.30, 121,286.42 and 49,649.86

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Solution

The fourth proportional to 87,883.30, 121,286.42 and 49,649.86 is: 68,521.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,883.30 : 121,286.42 = 49,649.86 : x
  2. Step 2: Convert to fraction form
    87,883.30/121,286.42 = 49,649.86/x
  3. Step 3: Cross multiply
    87,883.30x = 121,286.42 × 49,649.86
  4. Step 4: Simplify right side
    87,883.30x = 6,021,853,772.90
  5. Step 5: Solve for x
    x = 6,021,853,772.90/87,883.30
  6. Step 6: Final answer
    x = 68,521.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.