Home / 80,906.11-121,285.35-28,286.89

Finding the Fourth Proportional to 80,906.11, 121,285.35 and 28,286.89

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Solution

The fourth proportional to 80,906.11, 121,285.35 and 28,286.89 is: 42,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,906.11 : 121,285.35 = 28,286.89 : x
  2. Step 2: Convert to fraction form
    80,906.11/121,285.35 = 28,286.89/x
  3. Step 3: Cross multiply
    80,906.11x = 121,285.35 × 28,286.89
  4. Step 4: Simplify right side
    80,906.11x = 3,430,785,050.85
  5. Step 5: Solve for x
    x = 3,430,785,050.85/80,906.11
  6. Step 6: Final answer
    x = 42,404.52

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