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Finding the Fourth Proportional to 71,249.12, 98,326.68 and 39,417.50

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Solution

The fourth proportional to 71,249.12, 98,326.68 and 39,417.50 is: 54,397.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,249.12 : 98,326.68 = 39,417.50 : x
  2. Step 2: Convert to fraction form
    71,249.12/98,326.68 = 39,417.50/x
  3. Step 3: Cross multiply
    71,249.12x = 98,326.68 × 39,417.50
  4. Step 4: Simplify right side
    71,249.12x = 3,875,791,908.90
  5. Step 5: Solve for x
    x = 3,875,791,908.90/71,249.12
  6. Step 6: Final answer
    x = 54,397.75

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