Finding the Fourth Proportional to 80,650.15, 120,993.28 and 27,338.99
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Solution
The fourth proportional to 80,650.15, 120,993.28 and 27,338.99 is: 41,014.60
Step by Step Solution
- Step 1: Write the proportion equation
80,650.15 : 120,993.28 = 27,338.99 : x - Step 2: Convert to fraction form
80,650.15/120,993.28 = 27,338.99/x - Step 3: Cross multiply
80,650.15x = 120,993.28 × 27,338.99 - Step 4: Simplify right side
80,650.15x = 3,307,833,398.67 - Step 5: Solve for x
x = 3,307,833,398.67/80,650.15 - Step 6: Final answer
x = 41,014.60
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1.5x scale
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.