Finding the Fourth Proportional to 87,939.06, 131,927.04 and 28,770.09
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Solution
The fourth proportional to 87,939.06, 131,927.04 and 28,770.09 is: 43,161.17
Step by Step Solution
- Step 1: Write the proportion equation
87,939.06 : 131,927.04 = 28,770.09 : x - Step 2: Convert to fraction form
87,939.06/131,927.04 = 28,770.09/x - Step 3: Cross multiply
87,939.06x = 131,927.04 × 28,770.09 - Step 4: Simplify right side
87,939.06x = 3,795,552,814.23 - Step 5: Solve for x
x = 3,795,552,814.23/87,939.06 - Step 6: Final answer
x = 43,161.17
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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.