1. **State the problem:** Kristian spends 45% of his 72 dollars on a computer game. We need to find the price of the game. 2. **Formula used:** To find the part of a total amount corresponding to a percentage, use the formula: $$\text{Part} = \text{Percentage} \times \text{Total}$$ where the percentage is expressed as a decimal. 3. **Convert percentage to decimal:** 45% means 45 out of 100, so $$45\% = \frac{45}{100} = 0.45$$ 4. **Calculate the price:** Multiply the total amount by the decimal percentage: $$\text{Price} = 0.45 \times 72$$ 5. **Perform the multiplication:** $$0.45 \times 72 = 32.4$$ 6. **Interpretation:** Kristian spends 32.4 dollars on the computer game. **Final answer:** The price of the game is $32.4.