Finding the Fourth Proportional to 87,742.44, 131,394.96 and 52,706.70
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Solution
The fourth proportional to 87,742.44, 131,394.96 and 52,706.70 is: 78,928.68
Step by Step Solution
- Step 1: Write the proportion equation
87,742.44 : 131,394.96 = 52,706.70 : x - Step 2: Convert to fraction form
87,742.44/131,394.96 = 52,706.70/x - Step 3: Cross multiply
87,742.44x = 131,394.96 × 52,706.70 - Step 4: Simplify right side
87,742.44x = 6,925,394,738.23 - Step 5: Solve for x
x = 6,925,394,738.23/87,742.44 - Step 6: Final answer
x = 78,928.68
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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.