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Finding the Fourth Proportional to 80,747.87, 121,121.84 and 36,322.72

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Solution

The fourth proportional to 80,747.87, 121,121.84 and 36,322.72 is: 54,484.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,747.87 : 121,121.84 = 36,322.72 : x
  2. Step 2: Convert to fraction form
    80,747.87/121,121.84 = 36,322.72/x
  3. Step 3: Cross multiply
    80,747.87x = 121,121.84 × 36,322.72
  4. Step 4: Simplify right side
    80,747.87x = 4,399,474,366.05
  5. Step 5: Solve for x
    x = 4,399,474,366.05/80,747.87
  6. Step 6: Final answer
    x = 54,484.09

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