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Finding the Fourth Proportional to 80,358.40, 120,422.40 and 59,132.80

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Solution

The fourth proportional to 80,358.40, 120,422.40 and 59,132.80 is: 88,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,358.40 : 120,422.40 = 59,132.80 : x
  2. Step 2: Convert to fraction form
    80,358.40/120,422.40 = 59,132.80/x
  3. Step 3: Cross multiply
    80,358.40x = 120,422.40 × 59,132.80
  4. Step 4: Simplify right side
    80,358.40x = 7,120,913,694.72
  5. Step 5: Solve for x
    x = 7,120,913,694.72/80,358.40
  6. Step 6: Final answer
    x = 88,614.43

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