Home / 45,105.27-67,666.22-18,812.27

Finding the Fourth Proportional to 45,105.27, 67,666.22 and 18,812.27

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Solution

The fourth proportional to 45,105.27, 67,666.22 and 18,812.27 is: 28,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.27 : 67,666.22 = 18,812.27 : x
  2. Step 2: Convert to fraction form
    45,105.27/67,666.22 = 18,812.27/x
  3. Step 3: Cross multiply
    45,105.27x = 67,666.22 × 18,812.27
  4. Step 4: Simplify right side
    45,105.27x = 1,272,954,768.13
  5. Step 5: Solve for x
    x = 1,272,954,768.13/45,105.27
  6. Step 6: Final answer
    x = 28,221.86

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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.