Finding the Fourth Proportional to 84.62, 126.74 and 64.44
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Solution
The fourth proportional to 84.62, 126.74 and 64.44 is: 96.52
Step by Step Solution
- Step 1: Write the proportion equation
84.62 : 126.74 = 64.44 : x - Step 2: Convert to fraction form
84.62/126.74 = 64.44/x - Step 3: Cross multiply
84.62x = 126.74 × 64.44 - Step 4: Simplify right side
84.62x = 8,166.80 - Step 5: Solve for x
x = 8,166.80/84.62 - Step 6: Final answer
x = 96.52
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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.