Home / 55,147.08-82,722.24-20,112.96

Finding the Fourth Proportional to 55,147.08, 82,722.24 and 20,112.96

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Solution

The fourth proportional to 55,147.08, 82,722.24 and 20,112.96 is: 30,170.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,147.08 : 82,722.24 = 20,112.96 : x
  2. Step 2: Convert to fraction form
    55,147.08/82,722.24 = 20,112.96/x
  3. Step 3: Cross multiply
    55,147.08x = 82,722.24 × 20,112.96
  4. Step 4: Simplify right side
    55,147.08x = 1,663,789,104.23
  5. Step 5: Solve for x
    x = 1,663,789,104.23/55,147.08
  6. Step 6: Final answer
    x = 30,170.03

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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.