Finding the Fourth Proportional to 75.44, 112.94 and 63.99
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Solution
The fourth proportional to 75.44, 112.94 and 63.99 is: 95.80
Step by Step Solution
- Step 1: Write the proportion equation
75.44 : 112.94 = 63.99 : x - Step 2: Convert to fraction form
75.44/112.94 = 63.99/x - Step 3: Cross multiply
75.44x = 112.94 × 63.99 - Step 4: Simplify right side
75.44x = 7,226.71 - Step 5: Solve for x
x = 7,226.71/75.44 - Step 6: Final answer
x = 95.80
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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.