Home / 55,181.24-82,763.49-20,120.93

Finding the Fourth Proportional to 55,181.24, 82,763.49 and 20,120.93

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Solution

The fourth proportional to 55,181.24, 82,763.49 and 20,120.93 is: 30,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,181.24 : 82,763.49 = 20,120.93 : x
  2. Step 2: Convert to fraction form
    55,181.24/82,763.49 = 20,120.93/x
  3. Step 3: Cross multiply
    55,181.24x = 82,763.49 × 20,120.93
  4. Step 4: Simplify right side
    55,181.24x = 1,665,278,388.85
  5. Step 5: Solve for x
    x = 1,665,278,388.85/55,181.24
  6. Step 6: Final answer
    x = 30,178.34

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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.