Finding the Fourth Proportional to 67.96, 93.42 and 58.80
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Solution
The fourth proportional to 67.96, 93.42 and 58.80 is: 80.83
Step by Step Solution
- Step 1: Write the proportion equation
67.96 : 93.42 = 58.80 : x - Step 2: Convert to fraction form
67.96/93.42 = 58.80/x - Step 3: Cross multiply
67.96x = 93.42 × 58.80 - Step 4: Simplify right side
67.96x = 5,493.10 - Step 5: Solve for x
x = 5,493.10/67.96 - Step 6: Final answer
x = 80.83
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.