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Finding the Fourth Proportional to 71,641.42, 98,866.05 and 39,379.56

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Solution

The fourth proportional to 71,641.42, 98,866.05 and 39,379.56 is: 54,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,641.42 : 98,866.05 = 39,379.56 : x
  2. Step 2: Convert to fraction form
    71,641.42/98,866.05 = 39,379.56/x
  3. Step 3: Cross multiply
    71,641.42x = 98,866.05 × 39,379.56
  4. Step 4: Simplify right side
    71,641.42x = 3,893,301,695.61
  5. Step 5: Solve for x
    x = 3,893,301,695.61/71,641.42
  6. Step 6: Final answer
    x = 54,344.29

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