Home / 52,749.10-79,161.78-20,732.95

Finding the Fourth Proportional to 52,749.10, 79,161.78 and 20,732.95

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Solution

The fourth proportional to 52,749.10, 79,161.78 and 20,732.95 is: 31,114.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,749.10 : 79,161.78 = 20,732.95 : x
  2. Step 2: Convert to fraction form
    52,749.10/79,161.78 = 20,732.95/x
  3. Step 3: Cross multiply
    52,749.10x = 79,161.78 × 20,732.95
  4. Step 4: Simplify right side
    52,749.10x = 1,641,257,226.65
  5. Step 5: Solve for x
    x = 1,641,257,226.65/52,749.10
  6. Step 6: Final answer
    x = 31,114.41

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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.