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Finding the Fourth Proportional to 71,170.92, 98,211.60 and 39,337.92

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Solution

The fourth proportional to 71,170.92, 98,211.60 and 39,337.92 is: 54,283.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,170.92 : 98,211.60 = 39,337.92 : x
  2. Step 2: Convert to fraction form
    71,170.92/98,211.60 = 39,337.92/x
  3. Step 3: Cross multiply
    71,170.92x = 98,211.60 × 39,337.92
  4. Step 4: Simplify right side
    71,170.92x = 3,863,440,063.87
  5. Step 5: Solve for x
    x = 3,863,440,063.87/71,170.92
  6. Step 6: Final answer
    x = 54,283.97

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1.5x scale

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.