Finding the Fourth Proportional to 68.99, 94.92 and 67.07
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Solution
The fourth proportional to 68.99, 94.92 and 67.07 is: 92.28
Step by Step Solution
- Step 1: Write the proportion equation
68.99 : 94.92 = 67.07 : x - Step 2: Convert to fraction form
68.99/94.92 = 67.07/x - Step 3: Cross multiply
68.99x = 94.92 × 67.07 - Step 4: Simplify right side
68.99x = 6,366.28 - Step 5: Solve for x
x = 6,366.28/68.99 - Step 6: Final answer
x = 92.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.