Finding the Third Proportional to 67 and 86
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Solution
The third proportional to 67 and 86 is: 110.39
Step by Step Solution
- Step 1: Write the proportion equation
67 : 86 = 86 : x - Step 2: Convert to fraction form
67/86 = 86/x - Step 3: Cross multiply
67x = 86 × 86 - Step 4: Simplify right side
67x = 7,396 - Step 5: Solve for x
x = 7,396/67 - Step 6: Final answer
x = 110.39
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These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.