Home / 87,803.25-121,169.34-47,517.86

Finding the Fourth Proportional to 87,803.25, 121,169.34 and 47,517.86

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Solution

The fourth proportional to 87,803.25, 121,169.34 and 47,517.86 is: 65,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.25 : 121,169.34 = 47,517.86 : x
  2. Step 2: Convert to fraction form
    87,803.25/121,169.34 = 47,517.86/x
  3. Step 3: Cross multiply
    87,803.25x = 121,169.34 × 47,517.86
  4. Step 4: Simplify right side
    87,803.25x = 5,757,707,734.41
  5. Step 5: Solve for x
    x = 5,757,707,734.41/87,803.25
  6. Step 6: Final answer
    x = 65,575.11

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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.