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Finding the Fourth Proportional to 69,782.12, 96,301.88 and 39,979.88

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Solution

The fourth proportional to 69,782.12, 96,301.88 and 39,979.88 is: 55,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,782.12 : 96,301.88 = 39,979.88 : x
  2. Step 2: Convert to fraction form
    69,782.12/96,301.88 = 39,979.88/x
  3. Step 3: Cross multiply
    69,782.12x = 96,301.88 × 39,979.88
  4. Step 4: Simplify right side
    69,782.12x = 3,850,137,606.17
  5. Step 5: Solve for x
    x = 3,850,137,606.17/69,782.12
  6. Step 6: Final answer
    x = 55,173.70

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