Finding the Fourth Proportional to 86,211.42, 129,233.26 and 41,221.09
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Solution
The fourth proportional to 86,211.42, 129,233.26 and 41,221.09 is: 61,791.53
Step by Step Solution
- Step 1: Write the proportion equation
86,211.42 : 129,233.26 = 41,221.09 : x - Step 2: Convert to fraction form
86,211.42/129,233.26 = 41,221.09/x - Step 3: Cross multiply
86,211.42x = 129,233.26 × 41,221.09 - Step 4: Simplify right side
86,211.42x = 5,327,135,841.45 - Step 5: Solve for x
x = 5,327,135,841.45/86,211.42 - Step 6: Final answer
x = 61,791.53
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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.