Finding the Fourth Proportional to 75,257.28, 112,953.60 and 40,226.88
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Solution
The fourth proportional to 75,257.28, 112,953.60 and 40,226.88 is: 60,376.50
Step by Step Solution
- Step 1: Write the proportion equation
75,257.28 : 112,953.60 = 40,226.88 : x - Step 2: Convert to fraction form
75,257.28/112,953.60 = 40,226.88/x - Step 3: Cross multiply
75,257.28x = 112,953.60 × 40,226.88 - Step 4: Simplify right side
75,257.28x = 4,543,770,912.77 - Step 5: Solve for x
x = 4,543,770,912.77/75,257.28 - Step 6: Final answer
x = 60,376.50
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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.