Home / 45,197.05-67,808.83-20,231.54

Finding the Fourth Proportional to 45,197.05, 67,808.83 and 20,231.54

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Solution

The fourth proportional to 45,197.05, 67,808.83 and 20,231.54 is: 30,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,197.05 : 67,808.83 = 20,231.54 : x
  2. Step 2: Convert to fraction form
    45,197.05/67,808.83 = 20,231.54/x
  3. Step 3: Cross multiply
    45,197.05x = 67,808.83 × 20,231.54
  4. Step 4: Simplify right side
    45,197.05x = 1,371,876,666.88
  5. Step 5: Solve for x
    x = 1,371,876,666.88/45,197.05
  6. Step 6: Final answer
    x = 30,353.24

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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.