Home / 51,531.52-71,119.23-28,874.20

Finding the Fourth Proportional to 51,531.52, 71,119.23 and 28,874.20

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Solution

The fourth proportional to 51,531.52, 71,119.23 and 28,874.20 is: 39,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.52 : 71,119.23 = 28,874.20 : x
  2. Step 2: Convert to fraction form
    51,531.52/71,119.23 = 28,874.20/x
  3. Step 3: Cross multiply
    51,531.52x = 71,119.23 × 28,874.20
  4. Step 4: Simplify right side
    51,531.52x = 2,053,510,870.87
  5. Step 5: Solve for x
    x = 2,053,510,870.87/51,531.52
  6. Step 6: Final answer
    x = 39,849.61

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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.