Finding the Fourth Proportional to 68.88, 94.99 and 47.08
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Solution
The fourth proportional to 68.88, 94.99 and 47.08 is: 64.93
Step by Step Solution
- Step 1: Write the proportion equation
68.88 : 94.99 = 47.08 : x - Step 2: Convert to fraction form
68.88/94.99 = 47.08/x - Step 3: Cross multiply
68.88x = 94.99 × 47.08 - Step 4: Simplify right side
68.88x = 4,472.13 - Step 5: Solve for x
x = 4,472.13/68.88 - Step 6: Final answer
x = 64.93
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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.