Finding the Fourth Proportional to 79.05, 118.35 and 48.53
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Solution
The fourth proportional to 79.05, 118.35 and 48.53 is: 72.65
Step by Step Solution
- Step 1: Write the proportion equation
79.05 : 118.35 = 48.53 : x - Step 2: Convert to fraction form
79.05/118.35 = 48.53/x - Step 3: Cross multiply
79.05x = 118.35 × 48.53 - Step 4: Simplify right side
79.05x = 5,743.16 - Step 5: Solve for x
x = 5,743.16/79.05 - Step 6: Final answer
x = 72.65
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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.