Finding the Fourth Proportional to 79,838.20, 119,757.28 and 27,247.68
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Solution
The fourth proportional to 79,838.20, 119,757.28 and 27,247.68 is: 40,871.51
Step by Step Solution
- Step 1: Write the proportion equation
79,838.20 : 119,757.28 = 27,247.68 : x - Step 2: Convert to fraction form
79,838.20/119,757.28 = 27,247.68/x - Step 3: Cross multiply
79,838.20x = 119,757.28 × 27,247.68 - Step 4: Simplify right side
79,838.20x = 3,263,108,043.11 - Step 5: Solve for x
x = 3,263,108,043.11/79,838.20 - Step 6: Final answer
x = 40,871.51
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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.