Finding the Fourth Proportional to 68.63, 95.34 and 67.99
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Solution
The fourth proportional to 68.63, 95.34 and 67.99 is: 94.45
Step by Step Solution
- Step 1: Write the proportion equation
68.63 : 95.34 = 67.99 : x - Step 2: Convert to fraction form
68.63/95.34 = 67.99/x - Step 3: Cross multiply
68.63x = 95.34 × 67.99 - Step 4: Simplify right side
68.63x = 6,482.17 - Step 5: Solve for x
x = 6,482.17/68.63 - Step 6: Final answer
x = 94.45
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.