Finding the Fourth Proportional to 67.98, 93.84 and 48.60
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Solution
The fourth proportional to 67.98, 93.84 and 48.60 is: 67.09
Step by Step Solution
- Step 1: Write the proportion equation
67.98 : 93.84 = 48.60 : x - Step 2: Convert to fraction form
67.98/93.84 = 48.60/x - Step 3: Cross multiply
67.98x = 93.84 × 48.60 - Step 4: Simplify right side
67.98x = 4,560.62 - Step 5: Solve for x
x = 4,560.62/67.98 - Step 6: Final answer
x = 67.09
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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.