Home / 57,016.20-85,427.10-47,101.80

Finding the Fourth Proportional to 57,016.20, 85,427.10 and 47,101.80

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Solution

The fourth proportional to 57,016.20, 85,427.10 and 47,101.80 is: 70,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,016.20 : 85,427.10 = 47,101.80 : x
  2. Step 2: Convert to fraction form
    57,016.20/85,427.10 = 47,101.80/x
  3. Step 3: Cross multiply
    57,016.20x = 85,427.10 × 47,101.80
  4. Step 4: Simplify right side
    57,016.20x = 4,023,770,178.78
  5. Step 5: Solve for x
    x = 4,023,770,178.78/57,016.20
  6. Step 6: Final answer
    x = 70,572.40

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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.