Home / 45,082.96-67,630.60-18,781.56

Finding the Fourth Proportional to 45,082.96, 67,630.60 and 18,781.56

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Solution

The fourth proportional to 45,082.96, 67,630.60 and 18,781.56 is: 28,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,082.96 : 67,630.60 = 18,781.56 : x
  2. Step 2: Convert to fraction form
    45,082.96/67,630.60 = 18,781.56/x
  3. Step 3: Cross multiply
    45,082.96x = 67,630.60 × 18,781.56
  4. Step 4: Simplify right side
    45,082.96x = 1,270,208,171.74
  5. Step 5: Solve for x
    x = 1,270,208,171.74/45,082.96
  6. Step 6: Final answer
    x = 28,174.91

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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.