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Finding the Fourth Proportional to 71,204.70, 98,255.82 and 39,372.93

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Solution

The fourth proportional to 71,204.70, 98,255.82 and 39,372.93 is: 54,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,204.70 : 98,255.82 = 39,372.93 : x
  2. Step 2: Convert to fraction form
    71,204.70/98,255.82 = 39,372.93/x
  3. Step 3: Cross multiply
    71,204.70x = 98,255.82 × 39,372.93
  4. Step 4: Simplify right side
    71,204.70x = 3,868,619,522.95
  5. Step 5: Solve for x
    x = 3,868,619,522.95/71,204.70
  6. Step 6: Final answer
    x = 54,330.96

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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.