Finding the Fourth Proportional to 85,896.77, 128,843.01 and 33,306.26
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Solution
The fourth proportional to 85,896.77, 128,843.01 and 33,306.26 is: 49,958.55
Step by Step Solution
- Step 1: Write the proportion equation
85,896.77 : 128,843.01 = 33,306.26 : x - Step 2: Convert to fraction form
85,896.77/128,843.01 = 33,306.26/x - Step 3: Cross multiply
85,896.77x = 128,843.01 × 33,306.26 - Step 4: Simplify right side
85,896.77x = 4,291,278,146.03 - Step 5: Solve for x
x = 4,291,278,146.03/85,896.77 - Step 6: Final answer
x = 49,958.55
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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.