Finding the Fourth Proportional to 91,046.13, 136,593.49 and 28,716.63
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Solution
The fourth proportional to 91,046.13, 136,593.49 and 28,716.63 is: 43,082.61
Step by Step Solution
- Step 1: Write the proportion equation
91,046.13 : 136,593.49 = 28,716.63 : x - Step 2: Convert to fraction form
91,046.13/136,593.49 = 28,716.63/x - Step 3: Cross multiply
91,046.13x = 136,593.49 × 28,716.63 - Step 4: Simplify right side
91,046.13x = 3,922,504,712.74 - Step 5: Solve for x
x = 3,922,504,712.74/91,046.13 - Step 6: Final answer
x = 43,082.61
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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.