Home / 54,105.45-74,662.20-30,233.94

Finding the Fourth Proportional to 54,105.45, 74,662.20 and 30,233.94

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Solution

The fourth proportional to 54,105.45, 74,662.20 and 30,233.94 is: 41,720.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,105.45 : 74,662.20 = 30,233.94 : x
  2. Step 2: Convert to fraction form
    54,105.45/74,662.20 = 30,233.94/x
  3. Step 3: Cross multiply
    54,105.45x = 74,662.20 × 30,233.94
  4. Step 4: Simplify right side
    54,105.45x = 2,257,332,475.07
  5. Step 5: Solve for x
    x = 2,257,332,475.07/54,105.45
  6. Step 6: Final answer
    x = 41,720.98

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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.