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Finding the Fourth Proportional to 63,669.35, 87,866.08 and 38,179.87

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Solution

The fourth proportional to 63,669.35, 87,866.08 and 38,179.87 is: 52,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,669.35 : 87,866.08 = 38,179.87 : x
  2. Step 2: Convert to fraction form
    63,669.35/87,866.08 = 38,179.87/x
  3. Step 3: Cross multiply
    63,669.35x = 87,866.08 × 38,179.87
  4. Step 4: Simplify right side
    63,669.35x = 3,354,715,196.69
  5. Step 5: Solve for x
    x = 3,354,715,196.69/63,669.35
  6. Step 6: Final answer
    x = 52,689.64

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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.