Finding the Fourth Proportional to 50.73, 69.98 and 39.05
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Solution
The fourth proportional to 50.73, 69.98 and 39.05 is: 53.86
Step by Step Solution
- Step 1: Write the proportion equation
50.73 : 69.98 = 39.05 : x - Step 2: Convert to fraction form
50.73/69.98 = 39.05/x - Step 3: Cross multiply
50.73x = 69.98 × 39.05 - Step 4: Simplify right side
50.73x = 2,732.17 - Step 5: Solve for x
x = 2,732.17/50.73 - Step 6: Final answer
x = 53.86
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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.