Home / 39,861.42-54,948.60-32,775.54

Finding the Fourth Proportional to 39,861.42, 54,948.60 and 32,775.54

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Solution

The fourth proportional to 39,861.42, 54,948.60 and 32,775.54 is: 45,180.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861.42 : 54,948.60 = 32,775.54 : x
  2. Step 2: Convert to fraction form
    39,861.42/54,948.60 = 32,775.54/x
  3. Step 3: Cross multiply
    39,861.42x = 54,948.60 × 32,775.54
  4. Step 4: Simplify right side
    39,861.42x = 1,800,970,037.24
  5. Step 5: Solve for x
    x = 1,800,970,037.24/39,861.42
  6. Step 6: Final answer
    x = 45,180.78

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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.