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Finding the Fourth Proportional to 83,471.97, 115,190.94 and 45,231.66

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Solution

The fourth proportional to 83,471.97, 115,190.94 and 45,231.66 is: 62,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,471.97 : 115,190.94 = 45,231.66 : x
  2. Step 2: Convert to fraction form
    83,471.97/115,190.94 = 45,231.66/x
  3. Step 3: Cross multiply
    83,471.97x = 115,190.94 × 45,231.66
  4. Step 4: Simplify right side
    83,471.97x = 5,210,277,433.16
  5. Step 5: Solve for x
    x = 5,210,277,433.16/83,471.97
  6. Step 6: Final answer
    x = 62,419.49

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