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Finding the Fourth Proportional to 83,212.97, 124,816.21 and 45,847.13

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Solution

The fourth proportional to 83,212.97, 124,816.21 and 45,847.13 is: 68,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,212.97 : 124,816.21 = 45,847.13 : x
  2. Step 2: Convert to fraction form
    83,212.97/124,816.21 = 45,847.13/x
  3. Step 3: Cross multiply
    83,212.97x = 124,816.21 × 45,847.13
  4. Step 4: Simplify right side
    83,212.97x = 5,722,464,267.28
  5. Step 5: Solve for x
    x = 5,722,464,267.28/83,212.97
  6. Step 6: Final answer
    x = 68,768.90

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