Home / 82,576.96-123,778.68-40,398.80

Finding the Fourth Proportional to 82,576.96, 123,778.68 and 40,398.80

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Solution

The fourth proportional to 82,576.96, 123,778.68 and 40,398.80 is: 60,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,576.96 : 123,778.68 = 40,398.80 : x
  2. Step 2: Convert to fraction form
    82,576.96/123,778.68 = 40,398.80/x
  3. Step 3: Cross multiply
    82,576.96x = 123,778.68 × 40,398.80
  4. Step 4: Simplify right side
    82,576.96x = 5,000,510,137.58
  5. Step 5: Solve for x
    x = 5,000,510,137.58/82,576.96
  6. Step 6: Final answer
    x = 60,555.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.