Finding the Fourth Proportional to 73.28, 109.93 and 25.19
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Solution
The fourth proportional to 73.28, 109.93 and 25.19 is: 37.79
Step by Step Solution
- Step 1: Write the proportion equation
73.28 : 109.93 = 25.19 : x - Step 2: Convert to fraction form
73.28/109.93 = 25.19/x - Step 3: Cross multiply
73.28x = 109.93 × 25.19 - Step 4: Simplify right side
73.28x = 2,769.14 - Step 5: Solve for x
x = 2,769.14/73.28 - Step 6: Final answer
x = 37.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.