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Finding the Fourth Proportional to 78,964.40, 108,970.92 and 43,154.42

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Solution

The fourth proportional to 78,964.40, 108,970.92 and 43,154.42 is: 59,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,964.40 : 108,970.92 = 43,154.42 : x
  2. Step 2: Convert to fraction form
    78,964.40/108,970.92 = 43,154.42/x
  3. Step 3: Cross multiply
    78,964.40x = 108,970.92 × 43,154.42
  4. Step 4: Simplify right side
    78,964.40x = 4,702,576,304.61
  5. Step 5: Solve for x
    x = 4,702,576,304.61/78,964.40
  6. Step 6: Final answer
    x = 59,553.12

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