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Finding the Fourth Proportional to 54,299.52, 81,423.72 and 21,035.16

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Solution

The fourth proportional to 54,299.52, 81,423.72 and 21,035.16 is: 31,542.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,299.52 : 81,423.72 = 21,035.16 : x
  2. Step 2: Convert to fraction form
    54,299.52/81,423.72 = 21,035.16/x
  3. Step 3: Cross multiply
    54,299.52x = 81,423.72 × 21,035.16
  4. Step 4: Simplify right side
    54,299.52x = 1,712,760,978.00
  5. Step 5: Solve for x
    x = 1,712,760,978.00/54,299.52
  6. Step 6: Final answer
    x = 31,542.84

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