Home / 87,954.03-121,375.68-49,191.45

Finding the Fourth Proportional to 87,954.03, 121,375.68 and 49,191.45

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Solution

The fourth proportional to 87,954.03, 121,375.68 and 49,191.45 is: 67,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,954.03 : 121,375.68 = 49,191.45 : x
  2. Step 2: Convert to fraction form
    87,954.03/121,375.68 = 49,191.45/x
  3. Step 3: Cross multiply
    87,954.03x = 121,375.68 × 49,191.45
  4. Step 4: Simplify right side
    87,954.03x = 5,970,645,721.84
  5. Step 5: Solve for x
    x = 5,970,645,721.84/87,954.03
  6. Step 6: Final answer
    x = 67,883.71

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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.