Finding the Fourth Proportional to 80.67, 121.04 and 29.32
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Solution
The fourth proportional to 80.67, 121.04 and 29.32 is: 43.99
Step by Step Solution
- Step 1: Write the proportion equation
80.67 : 121.04 = 29.32 : x - Step 2: Convert to fraction form
80.67/121.04 = 29.32/x - Step 3: Cross multiply
80.67x = 121.04 × 29.32 - Step 4: Simplify right side
80.67x = 3,548.89 - Step 5: Solve for x
x = 3,548.89/80.67 - Step 6: Final answer
x = 43.99
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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.