Finding the Fourth Proportional to 91,126.98, 136,694.61 and 27,942.48
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Solution
The fourth proportional to 91,126.98, 136,694.61 and 27,942.48 is: 41,914.99
Step by Step Solution
- Step 1: Write the proportion equation
91,126.98 : 136,694.61 = 27,942.48 : x - Step 2: Convert to fraction form
91,126.98/136,694.61 = 27,942.48/x - Step 3: Cross multiply
91,126.98x = 136,694.61 × 27,942.48 - Step 4: Simplify right side
91,126.98x = 3,819,586,406.03 - Step 5: Solve for x
x = 3,819,586,406.03/91,126.98 - Step 6: Final answer
x = 41,914.99
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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.