Home / 87,745.32-121,088.56-49,512.97

Finding the Fourth Proportional to 87,745.32, 121,088.56 and 49,512.97

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Solution

The fourth proportional to 87,745.32, 121,088.56 and 49,512.97 is: 68,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,745.32 : 121,088.56 = 49,512.97 : x
  2. Step 2: Convert to fraction form
    87,745.32/121,088.56 = 49,512.97/x
  3. Step 3: Cross multiply
    87,745.32x = 121,088.56 × 49,512.97
  4. Step 4: Simplify right side
    87,745.32x = 5,995,454,238.62
  5. Step 5: Solve for x
    x = 5,995,454,238.62/87,745.32
  6. Step 6: Final answer
    x = 68,327.91

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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.