Finding the Fourth Proportional to 61.49, 84.82 and 46.91
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Solution
The fourth proportional to 61.49, 84.82 and 46.91 is: 64.70
Step by Step Solution
- Step 1: Write the proportion equation
61.49 : 84.82 = 46.91 : x - Step 2: Convert to fraction form
61.49/84.82 = 46.91/x - Step 3: Cross multiply
61.49x = 84.82 × 46.91 - Step 4: Simplify right side
61.49x = 3,978.67 - Step 5: Solve for x
x = 3,978.67/61.49 - Step 6: Final answer
x = 64.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.