Finding the Fourth Proportional to 67.77, 101.49 and 58.08
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Solution
The fourth proportional to 67.77, 101.49 and 58.08 is: 86.98
Step by Step Solution
- Step 1: Write the proportion equation
67.77 : 101.49 = 58.08 : x - Step 2: Convert to fraction form
67.77/101.49 = 58.08/x - Step 3: Cross multiply
67.77x = 101.49 × 58.08 - Step 4: Simplify right side
67.77x = 5,894.54 - Step 5: Solve for x
x = 5,894.54/67.77 - Step 6: Final answer
x = 86.98
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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.