Home / 51,662.80-77,508.78-20,082.52

Finding the Fourth Proportional to 51,662.80, 77,508.78 and 20,082.52

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Solution

The fourth proportional to 51,662.80, 77,508.78 and 20,082.52 is: 30,129.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,662.80 : 77,508.78 = 20,082.52 : x
  2. Step 2: Convert to fraction form
    51,662.80/77,508.78 = 20,082.52/x
  3. Step 3: Cross multiply
    51,662.80x = 77,508.78 × 20,082.52
  4. Step 4: Simplify right side
    51,662.80x = 1,556,571,624.53
  5. Step 5: Solve for x
    x = 1,556,571,624.53/51,662.80
  6. Step 6: Final answer
    x = 30,129.45

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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.