Finding the Fourth Proportional to 73.28, 109.62 and 54.99
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Solution
The fourth proportional to 73.28, 109.62 and 54.99 is: 82.26
Step by Step Solution
- Step 1: Write the proportion equation
73.28 : 109.62 = 54.99 : x - Step 2: Convert to fraction form
73.28/109.62 = 54.99/x - Step 3: Cross multiply
73.28x = 109.62 × 54.99 - Step 4: Simplify right side
73.28x = 6,028.00 - Step 5: Solve for x
x = 6,028.00/73.28 - Step 6: Final answer
x = 82.26
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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.