Finding the Fourth Proportional to 79,290.70, 109,424.32 and 43,481.99
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Solution
The fourth proportional to 79,290.70, 109,424.32 and 43,481.99 is: 60,006.88
Step by Step Solution
- Step 1: Write the proportion equation
79,290.70 : 109,424.32 = 43,481.99 : x - Step 2: Convert to fraction form
79,290.70/109,424.32 = 43,481.99/x - Step 3: Cross multiply
79,290.70x = 109,424.32 × 43,481.99 - Step 4: Simplify right side
79,290.70x = 4,757,987,352.85 - Step 5: Solve for x
x = 4,757,987,352.85/79,290.70 - Step 6: Final answer
x = 60,006.88
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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.