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Finding the Fourth Proportional to 99,707.12, 137,593.64 and 54,995.12

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Solution

The fourth proportional to 99,707.12, 137,593.64 and 54,995.12 is: 75,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,707.12 : 137,593.64 = 54,995.12 : x
  2. Step 2: Convert to fraction form
    99,707.12/137,593.64 = 54,995.12/x
  3. Step 3: Cross multiply
    99,707.12x = 137,593.64 × 54,995.12
  4. Step 4: Simplify right side
    99,707.12x = 7,566,978,743.04
  5. Step 5: Solve for x
    x = 7,566,978,743.04/99,707.12
  6. Step 6: Final answer
    x = 75,892.06

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