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Finding the Fourth Proportional to 53,805.20, 80,640.60 and 27,520.40

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Solution

The fourth proportional to 53,805.20, 80,640.60 and 27,520.40 is: 41,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,805.20 : 80,640.60 = 27,520.40 : x
  2. Step 2: Convert to fraction form
    53,805.20/80,640.60 = 27,520.40/x
  3. Step 3: Cross multiply
    53,805.20x = 80,640.60 × 27,520.40
  4. Step 4: Simplify right side
    53,805.20x = 2,219,261,568.24
  5. Step 5: Solve for x
    x = 2,219,261,568.24/53,805.20
  6. Step 6: Final answer
    x = 41,246.23

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