Finding the Fourth Proportional to 68.57, 94.71 and 46.70
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Solution
The fourth proportional to 68.57, 94.71 and 46.70 is: 64.50
Step by Step Solution
- Step 1: Write the proportion equation
68.57 : 94.71 = 46.70 : x - Step 2: Convert to fraction form
68.57/94.71 = 46.70/x - Step 3: Cross multiply
68.57x = 94.71 × 46.70 - Step 4: Simplify right side
68.57x = 4,422.96 - Step 5: Solve for x
x = 4,422.96/68.57 - Step 6: Final answer
x = 64.50
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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.