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Finding the Fourth Proportional to 63,580.33, 87,758 and 39,692.62

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Solution

The fourth proportional to 63,580.33, 87,758 and 39,692.62 is: 54,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,580.33 : 87,758 = 39,692.62 : x
  2. Step 2: Convert to fraction form
    63,580.33/87,758 = 39,692.62/x
  3. Step 3: Cross multiply
    63,580.33x = 87,758 × 39,692.62
  4. Step 4: Simplify right side
    63,580.33x = 3,483,344,945.96
  5. Step 5: Solve for x
    x = 3,483,344,945.96/63,580.33
  6. Step 6: Final answer
    x = 54,786.52

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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.