Finding the Third Proportional to 18,729 and 40,122.75
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Solution
The third proportional to 18,729 and 40,122.75 is: 85,954.14
Step by Step Solution
- Step 1: Write the proportion equation
18,729 : 40,122.75 = 40,122.75 : x - Step 2: Convert to fraction form
18,729/40,122.75 = 40,122.75/x - Step 3: Cross multiply
18,729x = 40,122.75 × 40,122.75 - Step 4: Simplify right side
18,729x = 1,609,835,067.56 - Step 5: Solve for x
x = 1,609,835,067.56/18,729 - Step 6: Final answer
x = 85,954.14
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Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.