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Finding the Fourth Proportional to 90,745.13, 125,221.11 and 50,456.40

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Solution

The fourth proportional to 90,745.13, 125,221.11 and 50,456.40 is: 69,625.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,745.13 : 125,221.11 = 50,456.40 : x
  2. Step 2: Convert to fraction form
    90,745.13/125,221.11 = 50,456.40/x
  3. Step 3: Cross multiply
    90,745.13x = 125,221.11 × 50,456.40
  4. Step 4: Simplify right side
    90,745.13x = 6,318,206,414.60
  5. Step 5: Solve for x
    x = 6,318,206,414.60/90,745.13
  6. Step 6: Final answer
    x = 69,625.85

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