Home / 51,377.76-77,047.20-20,196

Finding the Fourth Proportional to 51,377.76, 77,047.20 and 20,196

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Solution

The fourth proportional to 51,377.76, 77,047.20 and 20,196 is: 30,286.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,377.76 : 77,047.20 = 20,196 : x
  2. Step 2: Convert to fraction form
    51,377.76/77,047.20 = 20,196/x
  3. Step 3: Cross multiply
    51,377.76x = 77,047.20 × 20,196
  4. Step 4: Simplify right side
    51,377.76x = 1,556,045,251.20
  5. Step 5: Solve for x
    x = 1,556,045,251.20/51,377.76
  6. Step 6: Final answer
    x = 30,286.36

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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.