Home / 37,121.67-55,719.57-20,489.54

Finding the Fourth Proportional to 37,121.67, 55,719.57 and 20,489.54

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Solution

The fourth proportional to 37,121.67, 55,719.57 and 20,489.54 is: 30,754.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.67 : 55,719.57 = 20,489.54 : x
  2. Step 2: Convert to fraction form
    37,121.67/55,719.57 = 20,489.54/x
  3. Step 3: Cross multiply
    37,121.67x = 55,719.57 × 20,489.54
  4. Step 4: Simplify right side
    37,121.67x = 1,141,668,079.70
  5. Step 5: Solve for x
    x = 1,141,668,079.70/37,121.67
  6. Step 6: Final answer
    x = 30,754.76

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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.