Finding the Fourth Proportional to 86,212.42, 129,234.76 and 41,222.09
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Solution
The fourth proportional to 86,212.42, 129,234.76 and 41,222.09 is: 61,793.03
Step by Step Solution
- Step 1: Write the proportion equation
86,212.42 : 129,234.76 = 41,222.09 : x - Step 2: Convert to fraction form
86,212.42/129,234.76 = 41,222.09/x - Step 3: Cross multiply
86,212.42x = 129,234.76 × 41,222.09 - Step 4: Simplify right side
86,212.42x = 5,327,326,907.85 - Step 5: Solve for x
x = 5,327,326,907.85/86,212.42 - Step 6: Final answer
x = 61,793.03
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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.