Home / 45,127.82-67,716.22-18,834.86

Finding the Fourth Proportional to 45,127.82, 67,716.22 and 18,834.86

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Solution

The fourth proportional to 45,127.82, 67,716.22 and 18,834.86 is: 28,262.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,127.82 : 67,716.22 = 18,834.86 : x
  2. Step 2: Convert to fraction form
    45,127.82/67,716.22 = 18,834.86/x
  3. Step 3: Cross multiply
    45,127.82x = 67,716.22 × 18,834.86
  4. Step 4: Simplify right side
    45,127.82x = 1,275,425,523.43
  5. Step 5: Solve for x
    x = 1,275,425,523.43/45,127.82
  6. Step 6: Final answer
    x = 28,262.51

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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.