Finding the Fourth Proportional to 129,327.44, 193,993.32 and 40,578.80
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Solution
The fourth proportional to 129,327.44, 193,993.32 and 40,578.80 is: 60,868.88
Step by Step Solution
- Step 1: Write the proportion equation
129,327.44 : 193,993.32 = 40,578.80 : x - Step 2: Convert to fraction form
129,327.44/193,993.32 = 40,578.80/x - Step 3: Cross multiply
129,327.44x = 193,993.32 × 40,578.80 - Step 4: Simplify right side
129,327.44x = 7,872,016,133.62 - Step 5: Solve for x
x = 7,872,016,133.62/129,327.44 - Step 6: Final answer
x = 60,868.88
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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.