Home / 57,204.20-85,691.10-39,693.80

Finding the Fourth Proportional to 57,204.20, 85,691.10 and 39,693.80

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Solution

The fourth proportional to 57,204.20, 85,691.10 and 39,693.80 is: 59,460.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,204.20 : 85,691.10 = 39,693.80 : x
  2. Step 2: Convert to fraction form
    57,204.20/85,691.10 = 39,693.80/x
  3. Step 3: Cross multiply
    57,204.20x = 85,691.10 × 39,693.80
  4. Step 4: Simplify right side
    57,204.20x = 3,401,405,385.18
  5. Step 5: Solve for x
    x = 3,401,405,385.18/57,204.20
  6. Step 6: Final answer
    x = 59,460.76

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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.