Finding the Fourth Proportional to 79.23, 118.95 and 52.17
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Solution
The fourth proportional to 79.23, 118.95 and 52.17 is: 78.32
Step by Step Solution
- Step 1: Write the proportion equation
79.23 : 118.95 = 52.17 : x - Step 2: Convert to fraction form
79.23/118.95 = 52.17/x - Step 3: Cross multiply
79.23x = 118.95 × 52.17 - Step 4: Simplify right side
79.23x = 6,205.62 - Step 5: Solve for x
x = 6,205.62/79.23 - Step 6: Final answer
x = 78.32
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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.