Finding the Fourth Proportional to 67.26, 100.71 and 58.08
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Solution
The fourth proportional to 67.26, 100.71 and 58.08 is: 86.96
Step by Step Solution
- Step 1: Write the proportion equation
67.26 : 100.71 = 58.08 : x - Step 2: Convert to fraction form
67.26/100.71 = 58.08/x - Step 3: Cross multiply
67.26x = 100.71 × 58.08 - Step 4: Simplify right side
67.26x = 5,849.24 - Step 5: Solve for x
x = 5,849.24/67.26 - Step 6: Final answer
x = 86.96
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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.