Home / 87,881.14-121,275.29-47,593.97

Finding the Fourth Proportional to 87,881.14, 121,275.29 and 47,593.97

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Solution

The fourth proportional to 87,881.14, 121,275.29 and 47,593.97 is: 65,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.14 : 121,275.29 = 47,593.97 : x
  2. Step 2: Convert to fraction form
    87,881.14/121,275.29 = 47,593.97/x
  3. Step 3: Cross multiply
    87,881.14x = 121,275.29 × 47,593.97
  4. Step 4: Simplify right side
    87,881.14x = 5,771,972,481.39
  5. Step 5: Solve for x
    x = 5,771,972,481.39/87,881.14
  6. Step 6: Final answer
    x = 65,679.31

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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.