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Finding the Fourth Proportional to 80,889.42, 111,614.22 and 45,078.42

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Solution

The fourth proportional to 80,889.42, 111,614.22 and 45,078.42 is: 62,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,889.42 : 111,614.22 = 45,078.42 : x
  2. Step 2: Convert to fraction form
    80,889.42/111,614.22 = 45,078.42/x
  3. Step 3: Cross multiply
    80,889.42x = 111,614.22 × 45,078.42
  4. Step 4: Simplify right side
    80,889.42x = 5,031,392,687.13
  5. Step 5: Solve for x
    x = 5,031,392,687.13/80,889.42
  6. Step 6: Final answer
    x = 62,200.87

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