Finding the Fourth Proportional to 79.44, 119.28 and 76.02
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Solution
The fourth proportional to 79.44, 119.28 and 76.02 is: 114.14
Step by Step Solution
- Step 1: Write the proportion equation
79.44 : 119.28 = 76.02 : x - Step 2: Convert to fraction form
79.44/119.28 = 76.02/x - Step 3: Cross multiply
79.44x = 119.28 × 76.02 - Step 4: Simplify right side
79.44x = 9,067.67 - Step 5: Solve for x
x = 9,067.67/79.44 - Step 6: Final answer
x = 114.14
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.