Finding the Fourth Proportional to 43.81, 65.72 and 32.99
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Solution
The fourth proportional to 43.81, 65.72 and 32.99 is: 49.49
Step by Step Solution
- Step 1: Write the proportion equation
43.81 : 65.72 = 32.99 : x - Step 2: Convert to fraction form
43.81/65.72 = 32.99/x - Step 3: Cross multiply
43.81x = 65.72 × 32.99 - Step 4: Simplify right side
43.81x = 2,168.10 - Step 5: Solve for x
x = 2,168.10/43.81 - Step 6: Final answer
x = 49.49
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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.