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Finding the Fourth Proportional to 51,481.87, 71,041.49 and 28,510.04

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Solution

The fourth proportional to 51,481.87, 71,041.49 and 28,510.04 is: 39,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,481.87 : 71,041.49 = 28,510.04 : x
  2. Step 2: Convert to fraction form
    51,481.87/71,041.49 = 28,510.04/x
  3. Step 3: Cross multiply
    51,481.87x = 71,041.49 × 28,510.04
  4. Step 4: Simplify right side
    51,481.87x = 2,025,395,721.56
  5. Step 5: Solve for x
    x = 2,025,395,721.56/51,481.87
  6. Step 6: Final answer
    x = 39,341.92

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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.