Home / 49,135.10-73,731.20-20,669.96

Finding the Fourth Proportional to 49,135.10, 73,731.20 and 20,669.96

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Solution

The fourth proportional to 49,135.10, 73,731.20 and 20,669.96 is: 31,016.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,135.10 : 73,731.20 = 20,669.96 : x
  2. Step 2: Convert to fraction form
    49,135.10/73,731.20 = 20,669.96/x
  3. Step 3: Cross multiply
    49,135.10x = 73,731.20 × 20,669.96
  4. Step 4: Simplify right side
    49,135.10x = 1,524,021,035.73
  5. Step 5: Solve for x
    x = 1,524,021,035.73/49,135.10
  6. Step 6: Final answer
    x = 31,016.96

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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.