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Finding the Fourth Proportional to 77,092.80, 115,639.56 and 32,708.40

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Solution

The fourth proportional to 77,092.80, 115,639.56 and 32,708.40 is: 49,062.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,092.80 : 115,639.56 = 32,708.40 : x
  2. Step 2: Convert to fraction form
    77,092.80/115,639.56 = 32,708.40/x
  3. Step 3: Cross multiply
    77,092.80x = 115,639.56 × 32,708.40
  4. Step 4: Simplify right side
    77,092.80x = 3,782,384,984.30
  5. Step 5: Solve for x
    x = 3,782,384,984.30/77,092.80
  6. Step 6: Final answer
    x = 49,062.75

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