Finding the Fourth Proportional to 72.73, 108.89 and 46.99
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Solution
The fourth proportional to 72.73, 108.89 and 46.99 is: 70.35
Step by Step Solution
- Step 1: Write the proportion equation
72.73 : 108.89 = 46.99 : x - Step 2: Convert to fraction form
72.73/108.89 = 46.99/x - Step 3: Cross multiply
72.73x = 108.89 × 46.99 - Step 4: Simplify right side
72.73x = 5,116.74 - Step 5: Solve for x
x = 5,116.74/72.73 - Step 6: Final answer
x = 70.35
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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.