Finding the Fourth Proportional to 94.44, 130.26 and 61.68
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Solution
The fourth proportional to 94.44, 130.26 and 61.68 is: 85.07
Step by Step Solution
- Step 1: Write the proportion equation
94.44 : 130.26 = 61.68 : x - Step 2: Convert to fraction form
94.44/130.26 = 61.68/x - Step 3: Cross multiply
94.44x = 130.26 × 61.68 - Step 4: Simplify right side
94.44x = 8,034.44 - Step 5: Solve for x
x = 8,034.44/94.44 - Step 6: Final answer
x = 85.07
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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.