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Finding the Fourth Proportional to 99,464.43, 137,262.66 and 54,143.72

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Solution

The fourth proportional to 99,464.43, 137,262.66 and 54,143.72 is: 74,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,464.43 : 137,262.66 = 54,143.72 : x
  2. Step 2: Convert to fraction form
    99,464.43/137,262.66 = 54,143.72/x
  3. Step 3: Cross multiply
    99,464.43x = 137,262.66 × 54,143.72
  4. Step 4: Simplify right side
    99,464.43x = 7,431,910,343.18
  5. Step 5: Solve for x
    x = 7,431,910,343.18/99,464.43
  6. Step 6: Final answer
    x = 74,719.28

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