Finding the Fourth Proportional to 86,344.70, 129,590.85 and 33,791.09
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Solution
The fourth proportional to 86,344.70, 129,590.85 and 33,791.09 is: 50,715.51
Step by Step Solution
- Step 1: Write the proportion equation
86,344.70 : 129,590.85 = 33,791.09 : x - Step 2: Convert to fraction form
86,344.70/129,590.85 = 33,791.09/x - Step 3: Cross multiply
86,344.70x = 129,590.85 × 33,791.09 - Step 4: Simplify right side
86,344.70x = 4,379,015,427.57 - Step 5: Solve for x
x = 4,379,015,427.57/86,344.70 - Step 6: Final answer
x = 50,715.51
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1.5x scale
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.