Finding the Fourth Proportional to 68.36, 102.26 and 58.75
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Solution
The fourth proportional to 68.36, 102.26 and 58.75 is: 87.89
Step by Step Solution
- Step 1: Write the proportion equation
68.36 : 102.26 = 58.75 : x - Step 2: Convert to fraction form
68.36/102.26 = 58.75/x - Step 3: Cross multiply
68.36x = 102.26 × 58.75 - Step 4: Simplify right side
68.36x = 6,007.67 - Step 5: Solve for x
x = 6,007.67/68.36 - Step 6: Final answer
x = 87.89
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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.