Finding the Fourth Proportional to 43.53, 65.34 and 30.63
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Solution
The fourth proportional to 43.53, 65.34 and 30.63 is: 45.99
Step by Step Solution
- Step 1: Write the proportion equation
43.53 : 65.34 = 30.63 : x - Step 2: Convert to fraction form
43.53/65.34 = 30.63/x - Step 3: Cross multiply
43.53x = 65.34 × 30.63 - Step 4: Simplify right side
43.53x = 2,001.61 - Step 5: Solve for x
x = 2,001.61/43.53 - Step 6: Final answer
x = 45.99
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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.