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Finding the Fourth Proportional to 330,481.12, 495,722.16 and 81,163.36

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Solution

The fourth proportional to 330,481.12, 495,722.16 and 81,163.36 is: 121,745.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,481.12 : 495,722.16 = 81,163.36 : x
  2. Step 2: Convert to fraction form
    330,481.12/495,722.16 = 81,163.36/x
  3. Step 3: Cross multiply
    330,481.12x = 495,722.16 × 81,163.36
  4. Step 4: Simplify right side
    330,481.12x = 40,234,476,132.06
  5. Step 5: Solve for x
    x = 40,234,476,132.06/330,481.12
  6. Step 6: Final answer
    x = 121,745.16

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