Home / 87,995.43-121,436.08-49,760.70

Finding the Fourth Proportional to 87,995.43, 121,436.08 and 49,760.70

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Solution

The fourth proportional to 87,995.43, 121,436.08 and 49,760.70 is: 68,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,995.43 : 121,436.08 = 49,760.70 : x
  2. Step 2: Convert to fraction form
    87,995.43/121,436.08 = 49,760.70/x
  3. Step 3: Cross multiply
    87,995.43x = 121,436.08 × 49,760.70
  4. Step 4: Simplify right side
    87,995.43x = 6,042,743,766.27
  5. Step 5: Solve for x
    x = 6,042,743,766.27/87,995.43
  6. Step 6: Final answer
    x = 68,671.11

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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.