Home / 87,401.78-131,102.79-37,449.50

Finding the Fourth Proportional to 87,401.78, 131,102.79 and 37,449.50

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Solution

The fourth proportional to 87,401.78, 131,102.79 and 37,449.50 is: 56,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.78 : 131,102.79 = 37,449.50 : x
  2. Step 2: Convert to fraction form
    87,401.78/131,102.79 = 37,449.50/x
  3. Step 3: Cross multiply
    87,401.78x = 131,102.79 × 37,449.50
  4. Step 4: Simplify right side
    87,401.78x = 4,909,733,934.11
  5. Step 5: Solve for x
    x = 4,909,733,934.11/87,401.78
  6. Step 6: Final answer
    x = 56,174.30

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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.