Home / 55,183.20-82,796.40-20,126.40

Finding the Fourth Proportional to 55,183.20, 82,796.40 and 20,126.40

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Solution

The fourth proportional to 55,183.20, 82,796.40 and 20,126.40 is: 30,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,183.20 : 82,796.40 = 20,126.40 : x
  2. Step 2: Convert to fraction form
    55,183.20/82,796.40 = 20,126.40/x
  3. Step 3: Cross multiply
    55,183.20x = 82,796.40 × 20,126.40
  4. Step 4: Simplify right side
    55,183.20x = 1,666,393,464.96
  5. Step 5: Solve for x
    x = 1,666,393,464.96/55,183.20
  6. Step 6: Final answer
    x = 30,197.48

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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.