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Finding the Fourth Proportional to 53,971.20, 80,952.96 and 18,429.60

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Solution

The fourth proportional to 53,971.20, 80,952.96 and 18,429.60 is: 27,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,971.20 : 80,952.96 = 18,429.60 : x
  2. Step 2: Convert to fraction form
    53,971.20/80,952.96 = 18,429.60/x
  3. Step 3: Cross multiply
    53,971.20x = 80,952.96 × 18,429.60
  4. Step 4: Simplify right side
    53,971.20x = 1,491,930,671.62
  5. Step 5: Solve for x
    x = 1,491,930,671.62/53,971.20
  6. Step 6: Final answer
    x = 27,643.09

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