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Finding the Fourth Proportional to 85,021.76, 117,324.78 and 47,296.28

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Solution

The fourth proportional to 85,021.76, 117,324.78 and 47,296.28 is: 65,265.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,021.76 : 117,324.78 = 47,296.28 : x
  2. Step 2: Convert to fraction form
    85,021.76/117,324.78 = 47,296.28/x
  3. Step 3: Cross multiply
    85,021.76x = 117,324.78 × 47,296.28
  4. Step 4: Simplify right side
    85,021.76x = 5,549,025,645.82
  5. Step 5: Solve for x
    x = 5,549,025,645.82/85,021.76
  6. Step 6: Final answer
    x = 65,265.95

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