Home / 57,272.42-85,856.78-20,327.78

Finding the Fourth Proportional to 57,272.42, 85,856.78 and 20,327.78

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Solution

The fourth proportional to 57,272.42, 85,856.78 and 20,327.78 is: 30,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.42 : 85,856.78 = 20,327.78 : x
  2. Step 2: Convert to fraction form
    57,272.42/85,856.78 = 20,327.78/x
  3. Step 3: Cross multiply
    57,272.42x = 85,856.78 × 20,327.78
  4. Step 4: Simplify right side
    57,272.42x = 1,745,277,735.35
  5. Step 5: Solve for x
    x = 1,745,277,735.35/57,272.42
  6. Step 6: Final answer
    x = 30,473.27

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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.