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Finding the Fourth Proportional to 81,080.29, 121,695.18 and 41,127.31

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Solution

The fourth proportional to 81,080.29, 121,695.18 and 41,127.31 is: 61,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080.29 : 121,695.18 = 41,127.31 : x
  2. Step 2: Convert to fraction form
    81,080.29/121,695.18 = 41,127.31/x
  3. Step 3: Cross multiply
    81,080.29x = 121,695.18 × 41,127.31
  4. Step 4: Simplify right side
    81,080.29x = 5,004,995,393.37
  5. Step 5: Solve for x
    x = 5,004,995,393.37/81,080.29
  6. Step 6: Final answer
    x = 61,728.88

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