Finding the Fourth Proportional to 80,499.24, 120,744.99 and 30,575.44
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Solution
The fourth proportional to 80,499.24, 120,744.99 and 30,575.44 is: 45,861.69
Step by Step Solution
- Step 1: Write the proportion equation
80,499.24 : 120,744.99 = 30,575.44 : x - Step 2: Convert to fraction form
80,499.24/120,744.99 = 30,575.44/x - Step 3: Cross multiply
80,499.24x = 120,744.99 × 30,575.44 - Step 4: Simplify right side
80,499.24x = 3,691,831,347.98 - Step 5: Solve for x
x = 3,691,831,347.98/80,499.24 - Step 6: Final answer
x = 45,861.69
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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.