Home / 51,170.87-70,620.99-28,513.55

Finding the Fourth Proportional to 51,170.87, 70,620.99 and 28,513.55

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Solution

The fourth proportional to 51,170.87, 70,620.99 and 28,513.55 is: 39,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,170.87 : 70,620.99 = 28,513.55 : x
  2. Step 2: Convert to fraction form
    51,170.87/70,620.99 = 28,513.55/x
  3. Step 3: Cross multiply
    51,170.87x = 70,620.99 × 28,513.55
  4. Step 4: Simplify right side
    51,170.87x = 2,013,655,129.41
  5. Step 5: Solve for x
    x = 2,013,655,129.41/51,170.87
  6. Step 6: Final answer
    x = 39,351.59

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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.