Finding the Fourth Proportional to 83.22, 124.74 and 46.62
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Solution
The fourth proportional to 83.22, 124.74 and 46.62 is: 69.88
Step by Step Solution
- Step 1: Write the proportion equation
83.22 : 124.74 = 46.62 : x - Step 2: Convert to fraction form
83.22/124.74 = 46.62/x - Step 3: Cross multiply
83.22x = 124.74 × 46.62 - Step 4: Simplify right side
83.22x = 5,815.38 - Step 5: Solve for x
x = 5,815.38/83.22 - Step 6: Final answer
x = 69.88
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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.