Finding the Fourth Proportional to 80,494.26, 120,761.77 and 56,847.99
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Solution
The fourth proportional to 80,494.26, 120,761.77 and 56,847.99 is: 85,286.39
Step by Step Solution
- Step 1: Write the proportion equation
80,494.26 : 120,761.77 = 56,847.99 : x - Step 2: Convert to fraction form
80,494.26/120,761.77 = 56,847.99/x - Step 3: Cross multiply
80,494.26x = 120,761.77 × 56,847.99 - Step 4: Simplify right side
80,494.26x = 6,865,064,310.67 - Step 5: Solve for x
x = 6,865,064,310.67/80,494.26 - Step 6: Final answer
x = 85,286.39
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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.