Finding the Fourth Proportional to 50.73, 70.32 and 47.99
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Solution
The fourth proportional to 50.73, 70.32 and 47.99 is: 66.52
Step by Step Solution
- Step 1: Write the proportion equation
50.73 : 70.32 = 47.99 : x - Step 2: Convert to fraction form
50.73/70.32 = 47.99/x - Step 3: Cross multiply
50.73x = 70.32 × 47.99 - Step 4: Simplify right side
50.73x = 3,374.66 - Step 5: Solve for x
x = 3,374.66/50.73 - Step 6: Final answer
x = 66.52
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.