Finding the Fourth Proportional to 79,821.20, 119,722.20 and 33,069.20
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Solution
The fourth proportional to 79,821.20, 119,722.20 and 33,069.20 is: 49,599.82
Step by Step Solution
- Step 1: Write the proportion equation
79,821.20 : 119,722.20 = 33,069.20 : x - Step 2: Convert to fraction form
79,821.20/119,722.20 = 33,069.20/x - Step 3: Cross multiply
79,821.20x = 119,722.20 × 33,069.20 - Step 4: Simplify right side
79,821.20x = 3,959,117,376.24 - Step 5: Solve for x
x = 3,959,117,376.24/79,821.20 - Step 6: Final answer
x = 49,599.82
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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.