Home / 87,720.97-131,603.38-25,391.47

Finding the Fourth Proportional to 87,720.97, 131,603.38 and 25,391.47

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Solution

The fourth proportional to 87,720.97, 131,603.38 and 25,391.47 is: 38,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,720.97 : 131,603.38 = 25,391.47 : x
  2. Step 2: Convert to fraction form
    87,720.97/131,603.38 = 25,391.47/x
  3. Step 3: Cross multiply
    87,720.97x = 131,603.38 × 25,391.47
  4. Step 4: Simplify right side
    87,720.97x = 3,341,603,148.21
  5. Step 5: Solve for x
    x = 3,341,603,148.21/87,720.97
  6. Step 6: Final answer
    x = 38,093.55

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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.