Finding the Fourth Proportional to 80,279.68, 120,423.84 and 33,485.44
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Solution
The fourth proportional to 80,279.68, 120,423.84 and 33,485.44 is: 50,229.96
Step by Step Solution
- Step 1: Write the proportion equation
80,279.68 : 120,423.84 = 33,485.44 : x - Step 2: Convert to fraction form
80,279.68/120,423.84 = 33,485.44/x - Step 3: Cross multiply
80,279.68x = 120,423.84 × 33,485.44 - Step 4: Simplify right side
80,279.68x = 4,032,445,268.89 - Step 5: Solve for x
x = 4,032,445,268.89/80,279.68 - Step 6: Final answer
x = 50,229.96
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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.