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Finding the Fourth Proportional to 56,711.40, 85,067.10 and 47,963.40

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Solution

The fourth proportional to 56,711.40, 85,067.10 and 47,963.40 is: 71,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,711.40 : 85,067.10 = 47,963.40 : x
  2. Step 2: Convert to fraction form
    56,711.40/85,067.10 = 47,963.40/x
  3. Step 3: Cross multiply
    56,711.40x = 85,067.10 × 47,963.40
  4. Step 4: Simplify right side
    56,711.40x = 4,080,107,344.14
  5. Step 5: Solve for x
    x = 4,080,107,344.14/56,711.40
  6. Step 6: Final answer
    x = 71,945.10

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