Finding the Fourth Proportional to 94.63, 130.58 and 53.18
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Solution
The fourth proportional to 94.63, 130.58 and 53.18 is: 73.39
Step by Step Solution
- Step 1: Write the proportion equation
94.63 : 130.58 = 53.18 : x - Step 2: Convert to fraction form
94.63/130.58 = 53.18/x - Step 3: Cross multiply
94.63x = 130.58 × 53.18 - Step 4: Simplify right side
94.63x = 6,944.24 - Step 5: Solve for x
x = 6,944.24/94.63 - Step 6: Final answer
x = 73.39
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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.