Home / 87,720.75-131,594.07-25,383.15

Finding the Fourth Proportional to 87,720.75, 131,594.07 and 25,383.15

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Solution

The fourth proportional to 87,720.75, 131,594.07 and 25,383.15 is: 38,078.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,720.75 : 131,594.07 = 25,383.15 : x
  2. Step 2: Convert to fraction form
    87,720.75/131,594.07 = 25,383.15/x
  3. Step 3: Cross multiply
    87,720.75x = 131,594.07 × 25,383.15
  4. Step 4: Simplify right side
    87,720.75x = 3,340,272,017.92
  5. Step 5: Solve for x
    x = 3,340,272,017.92/87,720.75
  6. Step 6: Final answer
    x = 38,078.47

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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.