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Finding the Fourth Proportional to 71,377.28, 107,104.80 and 43,228.16

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Solution

The fourth proportional to 71,377.28, 107,104.80 and 43,228.16 is: 64,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,377.28 : 107,104.80 = 43,228.16 : x
  2. Step 2: Convert to fraction form
    71,377.28/107,104.80 = 43,228.16/x
  3. Step 3: Cross multiply
    71,377.28x = 107,104.80 × 43,228.16
  4. Step 4: Simplify right side
    71,377.28x = 4,629,943,431.17
  5. Step 5: Solve for x
    x = 4,629,943,431.17/71,377.28
  6. Step 6: Final answer
    x = 64,865.79

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