Finding the Fourth Proportional to 43.94, 65.84 and 30.42
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Solution
The fourth proportional to 43.94, 65.84 and 30.42 is: 45.58
Step by Step Solution
- Step 1: Write the proportion equation
43.94 : 65.84 = 30.42 : x - Step 2: Convert to fraction form
43.94/65.84 = 30.42/x - Step 3: Cross multiply
43.94x = 65.84 × 30.42 - Step 4: Simplify right side
43.94x = 2,002.85 - Step 5: Solve for x
x = 2,002.85/43.94 - Step 6: Final answer
x = 45.58
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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.