Home / 57,325.91-85,969.42-21,778.65

Finding the Fourth Proportional to 57,325.91, 85,969.42 and 21,778.65

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Solution

The fourth proportional to 57,325.91, 85,969.42 and 21,778.65 is: 32,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,325.91 : 85,969.42 = 21,778.65 : x
  2. Step 2: Convert to fraction form
    57,325.91/85,969.42 = 21,778.65/x
  3. Step 3: Cross multiply
    57,325.91x = 85,969.42 × 21,778.65
  4. Step 4: Simplify right side
    57,325.91x = 1,872,297,854.44
  5. Step 5: Solve for x
    x = 1,872,297,854.44/57,325.91
  6. Step 6: Final answer
    x = 32,660.59

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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.