Finding the Fourth Proportional to 84,082.27, 115,912.97 and 66,146.14
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Solution
The fourth proportional to 84,082.27, 115,912.97 and 66,146.14 is: 91,186.82
Step by Step Solution
- Step 1: Write the proportion equation
84,082.27 : 115,912.97 = 66,146.14 : x - Step 2: Convert to fraction form
84,082.27/115,912.97 = 66,146.14/x - Step 3: Cross multiply
84,082.27x = 115,912.97 × 66,146.14 - Step 4: Simplify right side
84,082.27x = 7,667,194,961.87 - Step 5: Solve for x
x = 7,667,194,961.87/84,082.27 - Step 6: Final answer
x = 91,186.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.