Finding the Fourth Proportional to 73.57, 101.52 and 49.05
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Solution
The fourth proportional to 73.57, 101.52 and 49.05 is: 67.68
Step by Step Solution
- Step 1: Write the proportion equation
73.57 : 101.52 = 49.05 : x - Step 2: Convert to fraction form
73.57/101.52 = 49.05/x - Step 3: Cross multiply
73.57x = 101.52 × 49.05 - Step 4: Simplify right side
73.57x = 4,979.05 - Step 5: Solve for x
x = 4,979.05/73.57 - Step 6: Final answer
x = 67.68
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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.