Finding the Fourth Proportional to 87,575.74, 120,855.48 and 49,850.26
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Solution
The fourth proportional to 87,575.74, 120,855.48 and 49,850.26 is: 68,793.90
Step by Step Solution
- Step 1: Write the proportion equation
87,575.74 : 120,855.48 = 49,850.26 : x - Step 2: Convert to fraction form
87,575.74/120,855.48 = 49,850.26/x - Step 3: Cross multiply
87,575.74x = 120,855.48 × 49,850.26 - Step 4: Simplify right side
87,575.74x = 6,024,677,100.42 - Step 5: Solve for x
x = 6,024,677,100.42/87,575.74 - Step 6: Final answer
x = 68,793.90
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1.5x scale
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.