Finding the Fourth Proportional to 67.79, 101.16 and 60.09
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Solution
The fourth proportional to 67.79, 101.16 and 60.09 is: 89.67
Step by Step Solution
- Step 1: Write the proportion equation
67.79 : 101.16 = 60.09 : x - Step 2: Convert to fraction form
67.79/101.16 = 60.09/x - Step 3: Cross multiply
67.79x = 101.16 × 60.09 - Step 4: Simplify right side
67.79x = 6,078.70 - Step 5: Solve for x
x = 6,078.70/67.79 - Step 6: Final answer
x = 89.67
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.