Home / 87,803.79-121,169.45-47,517.85

Finding the Fourth Proportional to 87,803.79, 121,169.45 and 47,517.85

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Solution

The fourth proportional to 87,803.79, 121,169.45 and 47,517.85 is: 65,574.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.79 : 121,169.45 = 47,517.85 : x
  2. Step 2: Convert to fraction form
    87,803.79/121,169.45 = 47,517.85/x
  3. Step 3: Cross multiply
    87,803.79x = 121,169.45 × 47,517.85
  4. Step 4: Simplify right side
    87,803.79x = 5,757,710,906.25
  5. Step 5: Solve for x
    x = 5,757,710,906.25/87,803.79
  6. Step 6: Final answer
    x = 65,574.74

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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.