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Finding the Fourth Proportional to 71,979.69, 107,969.54 and 36,896.97

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Solution

The fourth proportional to 71,979.69, 107,969.54 and 36,896.97 is: 55,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,979.69 : 107,969.54 = 36,896.97 : x
  2. Step 2: Convert to fraction form
    71,979.69/107,969.54 = 36,896.97/x
  3. Step 3: Cross multiply
    71,979.69x = 107,969.54 × 36,896.97
  4. Step 4: Simplify right side
    71,979.69x = 3,983,748,693.81
  5. Step 5: Solve for x
    x = 3,983,748,693.81/71,979.69
  6. Step 6: Final answer
    x = 55,345.46

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