Finding the Fourth Proportional to 67.73, 93.45 and 49.28
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Solution
The fourth proportional to 67.73, 93.45 and 49.28 is: 67.99
Step by Step Solution
- Step 1: Write the proportion equation
67.73 : 93.45 = 49.28 : x - Step 2: Convert to fraction form
67.73/93.45 = 49.28/x - Step 3: Cross multiply
67.73x = 93.45 × 49.28 - Step 4: Simplify right side
67.73x = 4,604.93 - Step 5: Solve for x
x = 4,604.93/67.73 - Step 6: Final answer
x = 67.99
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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.