Home / 87,401.43-131,002.92-76,851.01

Finding the Fourth Proportional to 87,401.43, 131,002.92 and 76,851.01

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Solution

The fourth proportional to 87,401.43, 131,002.92 and 76,851.01 is: 115,189.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.43 : 131,002.92 = 76,851.01 : x
  2. Step 2: Convert to fraction form
    87,401.43/131,002.92 = 76,851.01/x
  3. Step 3: Cross multiply
    87,401.43x = 131,002.92 × 76,851.01
  4. Step 4: Simplify right side
    87,401.43x = 10,067,706,878.70
  5. Step 5: Solve for x
    x = 10,067,706,878.70/87,401.43
  6. Step 6: Final answer
    x = 115,189.27

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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.