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Finding the Fourth Proportional to 63,456.81, 87,560.92 and 39,282.09

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Solution

The fourth proportional to 63,456.81, 87,560.92 and 39,282.09 is: 54,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,456.81 : 87,560.92 = 39,282.09 : x
  2. Step 2: Convert to fraction form
    63,456.81/87,560.92 = 39,282.09/x
  3. Step 3: Cross multiply
    63,456.81x = 87,560.92 × 39,282.09
  4. Step 4: Simplify right side
    63,456.81x = 3,439,575,939.92
  5. Step 5: Solve for x
    x = 3,439,575,939.92/63,456.81
  6. Step 6: Final answer
    x = 54,203.42

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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.