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Finding the Fourth Proportional to 115,857.40, 173,850.90 and 49,286.20

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Solution

The fourth proportional to 115,857.40, 173,850.90 and 49,286.20 is: 73,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,857.40 : 173,850.90 = 49,286.20 : x
  2. Step 2: Convert to fraction form
    115,857.40/173,850.90 = 49,286.20/x
  3. Step 3: Cross multiply
    115,857.40x = 173,850.90 × 49,286.20
  4. Step 4: Simplify right side
    115,857.40x = 8,568,450,227.58
  5. Step 5: Solve for x
    x = 8,568,450,227.58/115,857.40
  6. Step 6: Final answer
    x = 73,956.87

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