Finding the Fourth Proportional to 68.45, 102.67 and 58.88
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Solution
The fourth proportional to 68.45, 102.67 and 58.88 is: 88.32
Step by Step Solution
- Step 1: Write the proportion equation
68.45 : 102.67 = 58.88 : x - Step 2: Convert to fraction form
68.45/102.67 = 58.88/x - Step 3: Cross multiply
68.45x = 102.67 × 58.88 - Step 4: Simplify right side
68.45x = 6,045.21 - Step 5: Solve for x
x = 6,045.21/68.45 - Step 6: Final answer
x = 88.32
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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.