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Finding the Fourth Proportional to 63,375.35, 87,480 and 39,194.82

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Solution

The fourth proportional to 63,375.35, 87,480 and 39,194.82 is: 54,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,375.35 : 87,480 = 39,194.82 : x
  2. Step 2: Convert to fraction form
    63,375.35/87,480 = 39,194.82/x
  3. Step 3: Cross multiply
    63,375.35x = 87,480 × 39,194.82
  4. Step 4: Simplify right side
    63,375.35x = 3,428,762,853.60
  5. Step 5: Solve for x
    x = 3,428,762,853.60/63,375.35
  6. Step 6: Final answer
    x = 54,102.47

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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.