Finding the Fourth Proportional to 90,906.26, 125,450.62 and 53,187.80
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Solution
The fourth proportional to 90,906.26, 125,450.62 and 53,187.80 is: 73,399.15
Step by Step Solution
- Step 1: Write the proportion equation
90,906.26 : 125,450.62 = 53,187.80 : x - Step 2: Convert to fraction form
90,906.26/125,450.62 = 53,187.80/x - Step 3: Cross multiply
90,906.26x = 125,450.62 × 53,187.80 - Step 4: Simplify right side
90,906.26x = 6,672,442,486.44 - Step 5: Solve for x
x = 6,672,442,486.44/90,906.26 - Step 6: Final answer
x = 73,399.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.