Finding the Fourth Proportional to 94.10, 129.84 and 52.65
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Solution
The fourth proportional to 94.10, 129.84 and 52.65 is: 72.64
Step by Step Solution
- Step 1: Write the proportion equation
94.10 : 129.84 = 52.65 : x - Step 2: Convert to fraction form
94.10/129.84 = 52.65/x - Step 3: Cross multiply
94.10x = 129.84 × 52.65 - Step 4: Simplify right side
94.10x = 6,836.08 - Step 5: Solve for x
x = 6,836.08/94.10 - Step 6: Final answer
x = 72.64
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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.