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Finding the Fourth Proportional to 99,610.55, 137,458.55 and 54,287.57

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Solution

The fourth proportional to 99,610.55, 137,458.55 and 54,287.57 is: 74,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,610.55 : 137,458.55 = 54,287.57 : x
  2. Step 2: Convert to fraction form
    99,610.55/137,458.55 = 54,287.57/x
  3. Step 3: Cross multiply
    99,610.55x = 137,458.55 × 54,287.57
  4. Step 4: Simplify right side
    99,610.55x = 7,462,290,103.65
  5. Step 5: Solve for x
    x = 7,462,290,103.65/99,610.55
  6. Step 6: Final answer
    x = 74,914.65

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