Finding the Fourth Proportional to 68,272.49, 102,414.21 and 52,285.07
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Solution
The fourth proportional to 68,272.49, 102,414.21 and 52,285.07 is: 78,431.80
Step by Step Solution
- Step 1: Write the proportion equation
68,272.49 : 102,414.21 = 52,285.07 : x - Step 2: Convert to fraction form
68,272.49/102,414.21 = 52,285.07/x - Step 3: Cross multiply
68,272.49x = 102,414.21 × 52,285.07 - Step 4: Simplify right side
68,272.49x = 5,354,734,198.81 - Step 5: Solve for x
x = 5,354,734,198.81/68,272.49 - Step 6: Final answer
x = 78,431.80
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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.