Finding the Fourth Proportional to 84,115.23, 125,915.22 and 54,474.09
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Solution
The fourth proportional to 84,115.23, 125,915.22 and 54,474.09 is: 81,544.29
Step by Step Solution
- Step 1: Write the proportion equation
84,115.23 : 125,915.22 = 54,474.09 : x - Step 2: Convert to fraction form
84,115.23/125,915.22 = 54,474.09/x - Step 3: Cross multiply
84,115.23x = 125,915.22 × 54,474.09 - Step 4: Simplify right side
84,115.23x = 6,859,117,026.65 - Step 5: Solve for x
x = 6,859,117,026.65/84,115.23 - Step 6: Final answer
x = 81,544.29
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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.