Home / 87,469.91-120,714.57-49,233.12

Finding the Fourth Proportional to 87,469.91, 120,714.57 and 49,233.12

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Solution

The fourth proportional to 87,469.91, 120,714.57 and 49,233.12 is: 67,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,469.91 : 120,714.57 = 49,233.12 : x
  2. Step 2: Convert to fraction form
    87,469.91/120,714.57 = 49,233.12/x
  3. Step 3: Cross multiply
    87,469.91x = 120,714.57 × 49,233.12
  4. Step 4: Simplify right side
    87,469.91x = 5,943,154,457.88
  5. Step 5: Solve for x
    x = 5,943,154,457.88/87,469.91
  6. Step 6: Final answer
    x = 67,945.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.