Finding the Fourth Proportional to 94.68, 130.60 and 63.55
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Solution
The fourth proportional to 94.68, 130.60 and 63.55 is: 87.65
Step by Step Solution
- Step 1: Write the proportion equation
94.68 : 130.60 = 63.55 : x - Step 2: Convert to fraction form
94.68/130.60 = 63.55/x - Step 3: Cross multiply
94.68x = 130.60 × 63.55 - Step 4: Simplify right side
94.68x = 8,299.23 - Step 5: Solve for x
x = 8,299.23/94.68 - Step 6: Final answer
x = 87.65
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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.