Home / 45,183.50-67,747.90-20,218.89

Finding the Fourth Proportional to 45,183.50, 67,747.90 and 20,218.89

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Solution

The fourth proportional to 45,183.50, 67,747.90 and 20,218.89 is: 30,316.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,183.50 : 67,747.90 = 20,218.89 : x
  2. Step 2: Convert to fraction form
    45,183.50/67,747.90 = 20,218.89/x
  3. Step 3: Cross multiply
    45,183.50x = 67,747.90 × 20,218.89
  4. Step 4: Simplify right side
    45,183.50x = 1,369,787,337.83
  5. Step 5: Solve for x
    x = 1,369,787,337.83/45,183.50
  6. Step 6: Final answer
    x = 30,316.10

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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.