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Finding the Fourth Proportional to 73,192.80, 109,789.20 and 49,864.80

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Solution

The fourth proportional to 73,192.80, 109,789.20 and 49,864.80 is: 74,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,192.80 : 109,789.20 = 49,864.80 : x
  2. Step 2: Convert to fraction form
    73,192.80/109,789.20 = 49,864.80/x
  3. Step 3: Cross multiply
    73,192.80x = 109,789.20 × 49,864.80
  4. Step 4: Simplify right side
    73,192.80x = 5,474,616,500.16
  5. Step 5: Solve for x
    x = 5,474,616,500.16/73,192.80
  6. Step 6: Final answer
    x = 74,797.20

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