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Finding the Fourth Proportional to 74,963.40, 103,439.50 and 48,142.25

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Solution

The fourth proportional to 74,963.40, 103,439.50 and 48,142.25 is: 66,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.40 : 103,439.50 = 48,142.25 : x
  2. Step 2: Convert to fraction form
    74,963.40/103,439.50 = 48,142.25/x
  3. Step 3: Cross multiply
    74,963.40x = 103,439.50 × 48,142.25
  4. Step 4: Simplify right side
    74,963.40x = 4,979,809,631.32
  5. Step 5: Solve for x
    x = 4,979,809,631.32/74,963.40
  6. Step 6: Final answer
    x = 66,429.88

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