Home / 57,639.38-86,412.13-38,683.55

Finding the Fourth Proportional to 57,639.38, 86,412.13 and 38,683.55

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Solution

The fourth proportional to 57,639.38, 86,412.13 and 38,683.55 is: 57,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.38 : 86,412.13 = 38,683.55 : x
  2. Step 2: Convert to fraction form
    57,639.38/86,412.13 = 38,683.55/x
  3. Step 3: Cross multiply
    57,639.38x = 86,412.13 × 38,683.55
  4. Step 4: Simplify right side
    57,639.38x = 3,342,728,070.78
  5. Step 5: Solve for x
    x = 3,342,728,070.78/57,639.38
  6. Step 6: Final answer
    x = 57,993.83

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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.