Finding the Fourth Proportional to 68,240.26, 102,375.36 and 20,859.28
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Solution
The fourth proportional to 68,240.26, 102,375.36 and 20,859.28 is: 31,293.50
Step by Step Solution
- Step 1: Write the proportion equation
68,240.26 : 102,375.36 = 20,859.28 : x - Step 2: Convert to fraction form
68,240.26/102,375.36 = 20,859.28/x - Step 3: Cross multiply
68,240.26x = 102,375.36 × 20,859.28 - Step 4: Simplify right side
68,240.26x = 2,135,476,299.34 - Step 5: Solve for x
x = 2,135,476,299.34/68,240.26 - Step 6: Final answer
x = 31,293.50
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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.