Finding the Fourth Proportional to 80,505.12, 120,718.84 and 33,745.44
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Solution
The fourth proportional to 80,505.12, 120,718.84 and 33,745.44 is: 50,601.88
Step by Step Solution
- Step 1: Write the proportion equation
80,505.12 : 120,718.84 = 33,745.44 : x - Step 2: Convert to fraction form
80,505.12/120,718.84 = 33,745.44/x - Step 3: Cross multiply
80,505.12x = 120,718.84 × 33,745.44 - Step 4: Simplify right side
80,505.12x = 4,073,710,372.09 - Step 5: Solve for x
x = 4,073,710,372.09/80,505.12 - Step 6: Final answer
x = 50,601.88
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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.