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Finding the Fourth Proportional to 63,659.75, 87,894.38 and 39,797.15

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Solution

The fourth proportional to 63,659.75, 87,894.38 and 39,797.15 is: 54,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,659.75 : 87,894.38 = 39,797.15 : x
  2. Step 2: Convert to fraction form
    63,659.75/87,894.38 = 39,797.15/x
  3. Step 3: Cross multiply
    63,659.75x = 87,894.38 × 39,797.15
  4. Step 4: Simplify right side
    63,659.75x = 3,497,945,485.04
  5. Step 5: Solve for x
    x = 3,497,945,485.04/63,659.75
  6. Step 6: Final answer
    x = 54,947.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.