Home / 87,944.80-121,356.60-49,707.61

Finding the Fourth Proportional to 87,944.80, 121,356.60 and 49,707.61

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Solution

The fourth proportional to 87,944.80, 121,356.60 and 49,707.61 is: 68,592.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,944.80 : 121,356.60 = 49,707.61 : x
  2. Step 2: Convert to fraction form
    87,944.80/121,356.60 = 49,707.61/x
  3. Step 3: Cross multiply
    87,944.80x = 121,356.60 × 49,707.61
  4. Step 4: Simplify right side
    87,944.80x = 6,032,346,543.73
  5. Step 5: Solve for x
    x = 6,032,346,543.73/87,944.80
  6. Step 6: Final answer
    x = 68,592.42

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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.