Finding the Third Proportional to 67.50 and 85
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Solution
The third proportional to 67.50 and 85 is: 107.04
Step by Step Solution
- Step 1: Write the proportion equation
67.50 : 85 = 85 : x - Step 2: Convert to fraction form
67.50/85 = 85/x - Step 3: Cross multiply
67.50x = 85 × 85 - Step 4: Simplify right side
67.50x = 7,225 - Step 5: Solve for x
x = 7,225/67.50 - Step 6: Final answer
x = 107.04
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Why These Related Problems?
These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.