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Finding the Fourth Proportional to 71,144.44, 98,195.69 and 40,947.20

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Solution

The fourth proportional to 71,144.44, 98,195.69 and 40,947.20 is: 56,516.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,144.44 : 98,195.69 = 40,947.20 : x
  2. Step 2: Convert to fraction form
    71,144.44/98,195.69 = 40,947.20/x
  3. Step 3: Cross multiply
    71,144.44x = 98,195.69 × 40,947.20
  4. Step 4: Simplify right side
    71,144.44x = 4,020,838,537.19
  5. Step 5: Solve for x
    x = 4,020,838,537.19/71,144.44
  6. Step 6: Final answer
    x = 56,516.56

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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.