Finding the Fourth Proportional to 172,857.69, 259,286.49 and 54,540.99
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Solution
The fourth proportional to 172,857.69, 259,286.49 and 54,540.99 is: 81,811.47
Step by Step Solution
- Step 1: Write the proportion equation
172,857.69 : 259,286.49 = 54,540.99 : x - Step 2: Convert to fraction form
172,857.69/259,286.49 = 54,540.99/x - Step 3: Cross multiply
172,857.69x = 259,286.49 × 54,540.99 - Step 4: Simplify right side
172,857.69x = 14,141,741,858.23 - Step 5: Solve for x
x = 14,141,741,858.23/172,857.69 - Step 6: Final answer
x = 81,811.47
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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.