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Finding the Fourth Proportional to 43,363.65, 65,000.75 and 21,149.58

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Solution

The fourth proportional to 43,363.65, 65,000.75 and 21,149.58 is: 31,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,363.65 : 65,000.75 = 21,149.58 : x
  2. Step 2: Convert to fraction form
    43,363.65/65,000.75 = 21,149.58/x
  3. Step 3: Cross multiply
    43,363.65x = 65,000.75 × 21,149.58
  4. Step 4: Simplify right side
    43,363.65x = 1,374,738,456.44
  5. Step 5: Solve for x
    x = 1,374,738,456.44/43,363.65
  6. Step 6: Final answer
    x = 31,702.55

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