Home / 51,168.87-70,618.23-28,511.55

Finding the Fourth Proportional to 51,168.87, 70,618.23 and 28,511.55

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Solution

The fourth proportional to 51,168.87, 70,618.23 and 28,511.55 is: 39,348.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,168.87 : 70,618.23 = 28,511.55 : x
  2. Step 2: Convert to fraction form
    51,168.87/70,618.23 = 28,511.55/x
  3. Step 3: Cross multiply
    51,168.87x = 70,618.23 × 28,511.55
  4. Step 4: Simplify right side
    51,168.87x = 2,013,435,195.56
  5. Step 5: Solve for x
    x = 2,013,435,195.56/51,168.87
  6. Step 6: Final answer
    x = 39,348.83

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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.