Finding the Fourth Proportional to 86,249.99, 129,380.46 and 27,087.99
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Solution
The fourth proportional to 86,249.99, 129,380.46 and 27,087.99 is: 40,633.71
Step by Step Solution
- Step 1: Write the proportion equation
86,249.99 : 129,380.46 = 27,087.99 : x - Step 2: Convert to fraction form
86,249.99/129,380.46 = 27,087.99/x - Step 3: Cross multiply
86,249.99x = 129,380.46 × 27,087.99 - Step 4: Simplify right side
86,249.99x = 3,504,656,606.68 - Step 5: Solve for x
x = 3,504,656,606.68/86,249.99 - Step 6: Final answer
x = 40,633.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.