Home / 51,198.96-76,753.26-20,012.40

Finding the Fourth Proportional to 51,198.96, 76,753.26 and 20,012.40

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Solution

The fourth proportional to 51,198.96, 76,753.26 and 20,012.40 is: 30,000.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,198.96 : 76,753.26 = 20,012.40 : x
  2. Step 2: Convert to fraction form
    51,198.96/76,753.26 = 20,012.40/x
  3. Step 3: Cross multiply
    51,198.96x = 76,753.26 × 20,012.40
  4. Step 4: Simplify right side
    51,198.96x = 1,536,016,940.42
  5. Step 5: Solve for x
    x = 1,536,016,940.42/51,198.96
  6. Step 6: Final answer
    x = 30,000.94

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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.