Home / 81,171.97-111,944.80-50,960.11

Finding the Fourth Proportional to 81,171.97, 111,944.80 and 50,960.11

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Solution

The fourth proportional to 81,171.97, 111,944.80 and 50,960.11 is: 70,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,171.97 : 111,944.80 = 50,960.11 : x
  2. Step 2: Convert to fraction form
    81,171.97/111,944.80 = 50,960.11/x
  3. Step 3: Cross multiply
    81,171.97x = 111,944.80 × 50,960.11
  4. Step 4: Simplify right side
    81,171.97x = 5,704,719,738.00
  5. Step 5: Solve for x
    x = 5,704,719,738.00/81,171.97
  6. Step 6: Final answer
    x = 70,279.43

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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.