Home / 87,937.13-121,353.24-47,650.56

Finding the Fourth Proportional to 87,937.13, 121,353.24 and 47,650.56

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Solution

The fourth proportional to 87,937.13, 121,353.24 and 47,650.56 is: 65,757.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.13 : 121,353.24 = 47,650.56 : x
  2. Step 2: Convert to fraction form
    87,937.13/121,353.24 = 47,650.56/x
  3. Step 3: Cross multiply
    87,937.13x = 121,353.24 × 47,650.56
  4. Step 4: Simplify right side
    87,937.13x = 5,782,549,843.81
  5. Step 5: Solve for x
    x = 5,782,549,843.81/87,937.13
  6. Step 6: Final answer
    x = 65,757.78

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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.