Home / 54,313.70-81,535.35-30,640.10

Finding the Fourth Proportional to 54,313.70, 81,535.35 and 30,640.10

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Solution

The fourth proportional to 54,313.70, 81,535.35 and 30,640.10 is: 45,996.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,313.70 : 81,535.35 = 30,640.10 : x
  2. Step 2: Convert to fraction form
    54,313.70/81,535.35 = 30,640.10/x
  3. Step 3: Cross multiply
    54,313.70x = 81,535.35 × 30,640.10
  4. Step 4: Simplify right side
    54,313.70x = 2,498,251,277.54
  5. Step 5: Solve for x
    x = 2,498,251,277.54/54,313.70
  6. Step 6: Final answer
    x = 45,996.71

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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.