Home / 45,033.18-62,171.19-30,906.78

Finding the Fourth Proportional to 45,033.18, 62,171.19 and 30,906.78

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Solution

The fourth proportional to 45,033.18, 62,171.19 and 30,906.78 is: 42,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,033.18 : 62,171.19 = 30,906.78 : x
  2. Step 2: Convert to fraction form
    45,033.18/62,171.19 = 30,906.78/x
  3. Step 3: Cross multiply
    45,033.18x = 62,171.19 × 30,906.78
  4. Step 4: Simplify right side
    45,033.18x = 1,921,511,291.67
  5. Step 5: Solve for x
    x = 1,921,511,291.67/45,033.18
  6. Step 6: Final answer
    x = 42,668.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.