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Finding the Fourth Proportional to 65,847.52, 98,781.81 and 21,470.86

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Solution

The fourth proportional to 65,847.52, 98,781.81 and 21,470.86 is: 32,209.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,847.52 : 98,781.81 = 21,470.86 : x
  2. Step 2: Convert to fraction form
    65,847.52/98,781.81 = 21,470.86/x
  3. Step 3: Cross multiply
    65,847.52x = 98,781.81 × 21,470.86
  4. Step 4: Simplify right side
    65,847.52x = 2,120,930,413.06
  5. Step 5: Solve for x
    x = 2,120,930,413.06/65,847.52
  6. Step 6: Final answer
    x = 32,209.72

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