Home / 48,748.81-73,108.68-20,668.42

Finding the Fourth Proportional to 48,748.81, 73,108.68 and 20,668.42

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Solution

The fourth proportional to 48,748.81, 73,108.68 and 20,668.42 is: 30,996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,748.81 : 73,108.68 = 20,668.42 : x
  2. Step 2: Convert to fraction form
    48,748.81/73,108.68 = 20,668.42/x
  3. Step 3: Cross multiply
    48,748.81x = 73,108.68 × 20,668.42
  4. Step 4: Simplify right side
    48,748.81x = 1,511,040,903.89
  5. Step 5: Solve for x
    x = 1,511,040,903.89/48,748.81
  6. Step 6: Final answer
    x = 30,996.47

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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.