Home / 45,086.27-67,644.94-20,143.54

Finding the Fourth Proportional to 45,086.27, 67,644.94 and 20,143.54

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Solution

The fourth proportional to 45,086.27, 67,644.94 and 20,143.54 is: 30,222.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,086.27 : 67,644.94 = 20,143.54 : x
  2. Step 2: Convert to fraction form
    45,086.27/67,644.94 = 20,143.54/x
  3. Step 3: Cross multiply
    45,086.27x = 67,644.94 × 20,143.54
  4. Step 4: Simplify right side
    45,086.27x = 1,362,608,246.15
  5. Step 5: Solve for x
    x = 1,362,608,246.15/45,086.27
  6. Step 6: Final answer
    x = 30,222.24

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1.5x scale

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.