Finding the Fourth Proportional to 84,524.20, 126,616.80 and 40,193.68
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Solution
The fourth proportional to 84,524.20, 126,616.80 and 40,193.68 is: 60,209.92
Step by Step Solution
- Step 1: Write the proportion equation
84,524.20 : 126,616.80 = 40,193.68 : x - Step 2: Convert to fraction form
84,524.20/126,616.80 = 40,193.68/x - Step 3: Cross multiply
84,524.20x = 126,616.80 × 40,193.68 - Step 4: Simplify right side
84,524.20x = 5,089,195,141.82 - Step 5: Solve for x
x = 5,089,195,141.82/84,524.20 - Step 6: Final answer
x = 60,209.92
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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.