Home / 82,539.72-123,793.20-40,401.72

Finding the Fourth Proportional to 82,539.72, 123,793.20 and 40,401.72

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Solution

The fourth proportional to 82,539.72, 123,793.20 and 40,401.72 is: 60,594.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,539.72 : 123,793.20 = 40,401.72 : x
  2. Step 2: Convert to fraction form
    82,539.72/123,793.20 = 40,401.72/x
  3. Step 3: Cross multiply
    82,539.72x = 123,793.20 × 40,401.72
  4. Step 4: Simplify right side
    82,539.72x = 5,001,458,204.30
  5. Step 5: Solve for x
    x = 5,001,458,204.30/82,539.72
  6. Step 6: Final answer
    x = 60,594.56

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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.