Home / 57,928.70-79,942.82-32,778.20

Finding the Fourth Proportional to 57,928.70, 79,942.82 and 32,778.20

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Solution

The fourth proportional to 57,928.70, 79,942.82 and 32,778.20 is: 45,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,928.70 : 79,942.82 = 32,778.20 : x
  2. Step 2: Convert to fraction form
    57,928.70/79,942.82 = 32,778.20/x
  3. Step 3: Cross multiply
    57,928.70x = 79,942.82 × 32,778.20
  4. Step 4: Simplify right side
    57,928.70x = 2,620,381,742.52
  5. Step 5: Solve for x
    x = 2,620,381,742.52/57,928.70
  6. Step 6: Final answer
    x = 45,234.60

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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.