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Finding the Fourth Proportional to 54,274.80, 81,412.20 and 47,713.80

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Solution

The fourth proportional to 54,274.80, 81,412.20 and 47,713.80 is: 71,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,274.80 : 81,412.20 = 47,713.80 : x
  2. Step 2: Convert to fraction form
    54,274.80/81,412.20 = 47,713.80/x
  3. Step 3: Cross multiply
    54,274.80x = 81,412.20 × 47,713.80
  4. Step 4: Simplify right side
    54,274.80x = 3,884,485,428.36
  5. Step 5: Solve for x
    x = 3,884,485,428.36/54,274.80
  6. Step 6: Final answer
    x = 71,570.70

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