Finding the Fourth Proportional to 87,269.26, 120,442.86 and 53,270.62
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Solution
The fourth proportional to 87,269.26, 120,442.86 and 53,270.62 is: 73,520.34
Step by Step Solution
- Step 1: Write the proportion equation
87,269.26 : 120,442.86 = 53,270.62 : x - Step 2: Convert to fraction form
87,269.26/120,442.86 = 53,270.62/x - Step 3: Cross multiply
87,269.26x = 120,442.86 × 53,270.62 - Step 4: Simplify right side
87,269.26x = 6,416,065,826.77 - Step 5: Solve for x
x = 6,416,065,826.77/87,269.26 - Step 6: Final answer
x = 73,520.34
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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.