Finding the Fourth Proportional to 54.06, 80.99 and 40.49
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Solution
The fourth proportional to 54.06, 80.99 and 40.49 is: 60.66
Step by Step Solution
- Step 1: Write the proportion equation
54.06 : 80.99 = 40.49 : x - Step 2: Convert to fraction form
54.06/80.99 = 40.49/x - Step 3: Cross multiply
54.06x = 80.99 × 40.49 - Step 4: Simplify right side
54.06x = 3,279.08 - Step 5: Solve for x
x = 3,279.08/54.06 - Step 6: Final answer
x = 60.66
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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.