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Finding the Fourth Proportional to 63,062.82, 86,977.44 and 40,403.92

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Solution

The fourth proportional to 63,062.82, 86,977.44 and 40,403.92 is: 55,725.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,062.82 : 86,977.44 = 40,403.92 : x
  2. Step 2: Convert to fraction form
    63,062.82/86,977.44 = 40,403.92/x
  3. Step 3: Cross multiply
    63,062.82x = 86,977.44 × 40,403.92
  4. Step 4: Simplify right side
    63,062.82x = 3,514,229,527.56
  5. Step 5: Solve for x
    x = 3,514,229,527.56/63,062.82
  6. Step 6: Final answer
    x = 55,725.85

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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.