Home / 87,721.22-131,603.75-25,391.72

Finding the Fourth Proportional to 87,721.22, 131,603.75 and 25,391.72

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Solution

The fourth proportional to 87,721.22, 131,603.75 and 25,391.72 is: 38,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,721.22 : 131,603.75 = 25,391.72 : x
  2. Step 2: Convert to fraction form
    87,721.22/131,603.75 = 25,391.72/x
  3. Step 3: Cross multiply
    87,721.22x = 131,603.75 × 25,391.72
  4. Step 4: Simplify right side
    87,721.22x = 3,341,645,963.44
  5. Step 5: Solve for x
    x = 3,341,645,963.44/87,721.22
  6. Step 6: Final answer
    x = 38,093.93

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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.