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Finding the Fourth Proportional to 71,059.50, 98,060.90 and 39,227.72

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Solution

The fourth proportional to 71,059.50, 98,060.90 and 39,227.72 is: 54,133.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,059.50 : 98,060.90 = 39,227.72 : x
  2. Step 2: Convert to fraction form
    71,059.50/98,060.90 = 39,227.72/x
  3. Step 3: Cross multiply
    71,059.50x = 98,060.90 × 39,227.72
  4. Step 4: Simplify right side
    71,059.50x = 3,846,704,841.70
  5. Step 5: Solve for x
    x = 3,846,704,841.70/71,059.50
  6. Step 6: Final answer
    x = 54,133.58

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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.