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Finding the Fourth Proportional to 63,217, 87,230.82 and 34,921

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Solution

The fourth proportional to 63,217, 87,230.82 and 34,921 is: 48,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,217 : 87,230.82 = 34,921 : x
  2. Step 2: Convert to fraction form
    63,217/87,230.82 = 34,921/x
  3. Step 3: Cross multiply
    63,217x = 87,230.82 × 34,921
  4. Step 4: Simplify right side
    63,217x = 3,046,187,465.22
  5. Step 5: Solve for x
    x = 3,046,187,465.22/63,217
  6. Step 6: Final answer
    x = 48,186.21

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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.