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Finding the Fourth Proportional to 68,978.12, 103,401.56 and 43,947.90

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Solution

The fourth proportional to 68,978.12, 103,401.56 and 43,947.90 is: 65,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,978.12 : 103,401.56 = 43,947.90 : x
  2. Step 2: Convert to fraction form
    68,978.12/103,401.56 = 43,947.90/x
  3. Step 3: Cross multiply
    68,978.12x = 103,401.56 × 43,947.90
  4. Step 4: Simplify right side
    68,978.12x = 4,544,281,418.72
  5. Step 5: Solve for x
    x = 4,544,281,418.72/68,978.12
  6. Step 6: Final answer
    x = 65,880.04

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