Home / 51,540.57-71,121.51-28,876.59

Finding the Fourth Proportional to 51,540.57, 71,121.51 and 28,876.59

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Solution

The fourth proportional to 51,540.57, 71,121.51 and 28,876.59 is: 39,847.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,540.57 : 71,121.51 = 28,876.59 : x
  2. Step 2: Convert to fraction form
    51,540.57/71,121.51 = 28,876.59/x
  3. Step 3: Cross multiply
    51,540.57x = 71,121.51 × 28,876.59
  4. Step 4: Simplify right side
    51,540.57x = 2,053,746,684.45
  5. Step 5: Solve for x
    x = 2,053,746,684.45/51,540.57
  6. Step 6: Final answer
    x = 39,847.19

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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.