Finding the Fourth Proportional to 79,873.92, 119,821.52 and 27,269.28
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Solution
The fourth proportional to 79,873.92, 119,821.52 and 27,269.28 is: 40,907.55
Step by Step Solution
- Step 1: Write the proportion equation
79,873.92 : 119,821.52 = 27,269.28 : x - Step 2: Convert to fraction form
79,873.92/119,821.52 = 27,269.28/x - Step 3: Cross multiply
79,873.92x = 119,821.52 × 27,269.28 - Step 4: Simplify right side
79,873.92x = 3,267,446,578.91 - Step 5: Solve for x
x = 3,267,446,578.91/79,873.92 - Step 6: Final answer
x = 40,907.55
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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.