Home / 87,839.89-121,218.19-47,552.61

Finding the Fourth Proportional to 87,839.89, 121,218.19 and 47,552.61

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Solution

The fourth proportional to 87,839.89, 121,218.19 and 47,552.61 is: 65,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,839.89 : 121,218.19 = 47,552.61 : x
  2. Step 2: Convert to fraction form
    87,839.89/121,218.19 = 47,552.61/x
  3. Step 3: Cross multiply
    87,839.89x = 121,218.19 × 47,552.61
  4. Step 4: Simplify right side
    87,839.89x = 5,764,241,313.98
  5. Step 5: Solve for x
    x = 5,764,241,313.98/87,839.89
  6. Step 6: Final answer
    x = 65,622.14

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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.