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Finding the Fourth Proportional to 71,480.79, 98,655.30 and 39,659.94

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Solution

The fourth proportional to 71,480.79, 98,655.30 and 39,659.94 is: 54,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,480.79 : 98,655.30 = 39,659.94 : x
  2. Step 2: Convert to fraction form
    71,480.79/98,655.30 = 39,659.94/x
  3. Step 3: Cross multiply
    71,480.79x = 98,655.30 × 39,659.94
  4. Step 4: Simplify right side
    71,480.79x = 3,912,663,278.68
  5. Step 5: Solve for x
    x = 3,912,663,278.68/71,480.79
  6. Step 6: Final answer
    x = 54,737.27

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