Finding the Fourth Proportional to 80.13, 120.24 and 32.05
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Solution
The fourth proportional to 80.13, 120.24 and 32.05 is: 48.09
Step by Step Solution
- Step 1: Write the proportion equation
80.13 : 120.24 = 32.05 : x - Step 2: Convert to fraction form
80.13/120.24 = 32.05/x - Step 3: Cross multiply
80.13x = 120.24 × 32.05 - Step 4: Simplify right side
80.13x = 3,853.69 - Step 5: Solve for x
x = 3,853.69/80.13 - Step 6: Final answer
x = 48.09
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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.