Finding the Fourth Proportional to 91,243.26, 136,872.99 and 32,079.42
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Solution
The fourth proportional to 91,243.26, 136,872.99 and 32,079.42 is: 48,121.98
Step by Step Solution
- Step 1: Write the proportion equation
91,243.26 : 136,872.99 = 32,079.42 : x - Step 2: Convert to fraction form
91,243.26/136,872.99 = 32,079.42/x - Step 3: Cross multiply
91,243.26x = 136,872.99 × 32,079.42 - Step 4: Simplify right side
91,243.26x = 4,390,806,132.87 - Step 5: Solve for x
x = 4,390,806,132.87/91,243.26 - Step 6: Final answer
x = 48,121.98
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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.