Finding the Fourth Proportional to 46.09, 69.14 and 30.72
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Solution
The fourth proportional to 46.09, 69.14 and 30.72 is: 46.09
Step by Step Solution
- Step 1: Write the proportion equation
46.09 : 69.14 = 30.72 : x - Step 2: Convert to fraction form
46.09/69.14 = 30.72/x - Step 3: Cross multiply
46.09x = 69.14 × 30.72 - Step 4: Simplify right side
46.09x = 2,124.31 - Step 5: Solve for x
x = 2,124.31/46.09 - Step 6: Final answer
x = 46.09
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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.