Finding the Fourth Proportional to 32.72, 48.80 and 30.09
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Solution
The fourth proportional to 32.72, 48.80 and 30.09 is: 44.88
Step by Step Solution
- Step 1: Write the proportion equation
32.72 : 48.80 = 30.09 : x - Step 2: Convert to fraction form
32.72/48.80 = 30.09/x - Step 3: Cross multiply
32.72x = 48.80 × 30.09 - Step 4: Simplify right side
32.72x = 1,468.24 - Step 5: Solve for x
x = 1,468.24/32.72 - Step 6: Final answer
x = 44.88
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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.