Home / 45,082.46-67,629.84-18,781.05

Finding the Fourth Proportional to 45,082.46, 67,629.84 and 18,781.05

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Solution

The fourth proportional to 45,082.46, 67,629.84 and 18,781.05 is: 28,174.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,082.46 : 67,629.84 = 18,781.05 : x
  2. Step 2: Convert to fraction form
    45,082.46/67,629.84 = 18,781.05/x
  3. Step 3: Cross multiply
    45,082.46x = 67,629.84 × 18,781.05
  4. Step 4: Simplify right side
    45,082.46x = 1,270,158,974.48
  5. Step 5: Solve for x
    x = 1,270,158,974.48/45,082.46
  6. Step 6: Final answer
    x = 28,174.13

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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.