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Finding the Fourth Proportional to 63,676.18, 87,845.87 and 39,761.33

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Solution

The fourth proportional to 63,676.18, 87,845.87 and 39,761.33 is: 54,853.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,676.18 : 87,845.87 = 39,761.33 : x
  2. Step 2: Convert to fraction form
    63,676.18/87,845.87 = 39,761.33/x
  3. Step 3: Cross multiply
    63,676.18x = 87,845.87 × 39,761.33
  4. Step 4: Simplify right side
    63,676.18x = 3,492,868,427.40
  5. Step 5: Solve for x
    x = 3,492,868,427.40/63,676.18
  6. Step 6: Final answer
    x = 54,853.62

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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.