Finding the Third Proportional to 38,728.13 and 81,739.13
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Solution
The third proportional to 38,728.13 and 81,739.13 is: 172,517.64
Step by Step Solution
- Step 1: Write the proportion equation
38,728.13 : 81,739.13 = 81,739.13 : x - Step 2: Convert to fraction form
38,728.13/81,739.13 = 81,739.13/x - Step 3: Cross multiply
38,728.13x = 81,739.13 × 81,739.13 - Step 4: Simplify right side
38,728.13x = 6,681,284,555.77 - Step 5: Solve for x
x = 6,681,284,555.77/38,728.13 - Step 6: Final answer
x = 172,517.64
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Why These Related Problems?
These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.