Home / 57,031.38-85,569-40,180.62

Finding the Fourth Proportional to 57,031.38, 85,569 and 40,180.62

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Solution

The fourth proportional to 57,031.38, 85,569 and 40,180.62 is: 60,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,031.38 : 85,569 = 40,180.62 : x
  2. Step 2: Convert to fraction form
    57,031.38/85,569 = 40,180.62/x
  3. Step 3: Cross multiply
    57,031.38x = 85,569 × 40,180.62
  4. Step 4: Simplify right side
    57,031.38x = 3,438,215,472.78
  5. Step 5: Solve for x
    x = 3,438,215,472.78/57,031.38
  6. Step 6: Final answer
    x = 60,286.38

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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.