Home / 57,331.20-85,826.70-42,605.40

Finding the Fourth Proportional to 57,331.20, 85,826.70 and 42,605.40

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Solution

The fourth proportional to 57,331.20, 85,826.70 and 42,605.40 is: 63,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,331.20 : 85,826.70 = 42,605.40 : x
  2. Step 2: Convert to fraction form
    57,331.20/85,826.70 = 42,605.40/x
  3. Step 3: Cross multiply
    57,331.20x = 85,826.70 × 42,605.40
  4. Step 4: Simplify right side
    57,331.20x = 3,656,680,884.18
  5. Step 5: Solve for x
    x = 3,656,680,884.18/57,331.20
  6. Step 6: Final answer
    x = 63,781.69

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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.