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Finding the Fourth Proportional to 55,387.38, 83,081.34 and 13,834.38

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Solution

The fourth proportional to 55,387.38, 83,081.34 and 13,834.38 is: 20,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,387.38 : 83,081.34 = 13,834.38 : x
  2. Step 2: Convert to fraction form
    55,387.38/83,081.34 = 13,834.38/x
  3. Step 3: Cross multiply
    55,387.38x = 83,081.34 × 13,834.38
  4. Step 4: Simplify right side
    55,387.38x = 1,149,378,828.47
  5. Step 5: Solve for x
    x = 1,149,378,828.47/55,387.38
  6. Step 6: Final answer
    x = 20,751.64

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