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Finding the Fourth Proportional to 65,863.80, 98,682.30 and 30,731.40

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Solution

The fourth proportional to 65,863.80, 98,682.30 and 30,731.40 is: 46,044.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.80 : 98,682.30 = 30,731.40 : x
  2. Step 2: Convert to fraction form
    65,863.80/98,682.30 = 30,731.40/x
  3. Step 3: Cross multiply
    65,863.80x = 98,682.30 × 30,731.40
  4. Step 4: Simplify right side
    65,863.80x = 3,032,645,234.22
  5. Step 5: Solve for x
    x = 3,032,645,234.22/65,863.80
  6. Step 6: Final answer
    x = 46,044.19

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