Home / 51,211.92-76,765.06-19,613.36

Finding the Fourth Proportional to 51,211.92, 76,765.06 and 19,613.36

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Solution

The fourth proportional to 51,211.92, 76,765.06 and 19,613.36 is: 29,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,211.92 : 76,765.06 = 19,613.36 : x
  2. Step 2: Convert to fraction form
    51,211.92/76,765.06 = 19,613.36/x
  3. Step 3: Cross multiply
    51,211.92x = 76,765.06 × 19,613.36
  4. Step 4: Simplify right side
    51,211.92x = 1,505,620,757.20
  5. Step 5: Solve for x
    x = 1,505,620,757.20/51,211.92
  6. Step 6: Final answer
    x = 29,399.81

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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.