Finding the Fourth Proportional to 79.08, 118.74 and 52.08
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Solution
The fourth proportional to 79.08, 118.74 and 52.08 is: 78.20
Step by Step Solution
- Step 1: Write the proportion equation
79.08 : 118.74 = 52.08 : x - Step 2: Convert to fraction form
79.08/118.74 = 52.08/x - Step 3: Cross multiply
79.08x = 118.74 × 52.08 - Step 4: Simplify right side
79.08x = 6,183.98 - Step 5: Solve for x
x = 6,183.98/79.08 - Step 6: Final answer
x = 78.20
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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.