Finding the Fourth Proportional to 79,161.68, 109,244.04 and 49,370.96
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Solution
The fourth proportional to 79,161.68, 109,244.04 and 49,370.96 is: 68,132.50
Step by Step Solution
- Step 1: Write the proportion equation
79,161.68 : 109,244.04 = 49,370.96 : x - Step 2: Convert to fraction form
79,161.68/109,244.04 = 49,370.96/x - Step 3: Cross multiply
79,161.68x = 109,244.04 × 49,370.96 - Step 4: Simplify right side
79,161.68x = 5,393,483,129.08 - Step 5: Solve for x
x = 5,393,483,129.08/79,161.68 - Step 6: Final answer
x = 68,132.50
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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.