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Finding the Fourth Proportional to 71,040.68, 98,036.94 and 39,209.57

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Solution

The fourth proportional to 71,040.68, 98,036.94 and 39,209.57 is: 54,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,040.68 : 98,036.94 = 39,209.57 : x
  2. Step 2: Convert to fraction form
    71,040.68/98,036.94 = 39,209.57/x
  3. Step 3: Cross multiply
    71,040.68x = 98,036.94 × 39,209.57
  4. Step 4: Simplify right side
    71,040.68x = 3,843,986,261.52
  5. Step 5: Solve for x
    x = 3,843,986,261.52/71,040.68
  6. Step 6: Final answer
    x = 54,109.65

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