Finding the Fourth Proportional to 49.92, 74.60 and 49.52
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Solution
The fourth proportional to 49.92, 74.60 and 49.52 is: 73.99
Step by Step Solution
- Step 1: Write the proportion equation
49.92 : 74.60 = 49.52 : x - Step 2: Convert to fraction form
49.92/74.60 = 49.52/x - Step 3: Cross multiply
49.92x = 74.60 × 49.52 - Step 4: Simplify right side
49.92x = 3,693.57 - Step 5: Solve for x
x = 3,693.57/49.92 - Step 6: Final answer
x = 73.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.