Finding the Third Proportional to 79 and 83.50
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Solution
The third proportional to 79 and 83.50 is: 88.26
Step by Step Solution
- Step 1: Write the proportion equation
79 : 83.50 = 83.50 : x - Step 2: Convert to fraction form
79/83.50 = 83.50/x - Step 3: Cross multiply
79x = 83.50 × 83.50 - Step 4: Simplify right side
79x = 6,972.25 - Step 5: Solve for x
x = 6,972.25/79 - Step 6: Final answer
x = 88.26
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Why These Related Problems?
These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.