Finding the Fourth Proportional to 67.38, 100.93 and 46.99
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Solution
The fourth proportional to 67.38, 100.93 and 46.99 is: 70.39
Step by Step Solution
- Step 1: Write the proportion equation
67.38 : 100.93 = 46.99 : x - Step 2: Convert to fraction form
67.38/100.93 = 46.99/x - Step 3: Cross multiply
67.38x = 100.93 × 46.99 - Step 4: Simplify right side
67.38x = 4,742.70 - Step 5: Solve for x
x = 4,742.70/67.38 - Step 6: Final answer
x = 70.39
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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.