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Finding the Fourth Proportional to 63,687.88, 87,891.06 and 36,827.80

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Solution

The fourth proportional to 63,687.88, 87,891.06 and 36,827.80 is: 50,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,687.88 : 87,891.06 = 36,827.80 : x
  2. Step 2: Convert to fraction form
    63,687.88/87,891.06 = 36,827.80/x
  3. Step 3: Cross multiply
    63,687.88x = 87,891.06 × 36,827.80
  4. Step 4: Simplify right side
    63,687.88x = 3,236,834,379.47
  5. Step 5: Solve for x
    x = 3,236,834,379.47/63,687.88
  6. Step 6: Final answer
    x = 50,823.40

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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.