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Finding the Fourth Proportional to 71,331.78, 98,436.63 and 39,500.00

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Solution

The fourth proportional to 71,331.78, 98,436.63 and 39,500.00 is: 54,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,331.78 : 98,436.63 = 39,500.00 : x
  2. Step 2: Convert to fraction form
    71,331.78/98,436.63 = 39,500.00/x
  3. Step 3: Cross multiply
    71,331.78x = 98,436.63 × 39,500.00
  4. Step 4: Simplify right side
    71,331.78x = 3,888,246,910.08
  5. Step 5: Solve for x
    x = 3,888,246,910.08/71,331.78
  6. Step 6: Final answer
    x = 54,509.32

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