Home / 87,243.88-120,390.32-49,001.44

Finding the Fourth Proportional to 87,243.88, 120,390.32 and 49,001.44

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Solution

The fourth proportional to 87,243.88, 120,390.32 and 49,001.44 is: 67,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,243.88 : 120,390.32 = 49,001.44 : x
  2. Step 2: Convert to fraction form
    87,243.88/120,390.32 = 49,001.44/x
  3. Step 3: Cross multiply
    87,243.88x = 120,390.32 × 49,001.44
  4. Step 4: Simplify right side
    87,243.88x = 5,899,299,042.06
  5. Step 5: Solve for x
    x = 5,899,299,042.06/87,243.88
  6. Step 6: Final answer
    x = 67,618.49

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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.