Finding the Fourth Proportional to 56.84, 84.82 and 50.70
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Solution
The fourth proportional to 56.84, 84.82 and 50.70 is: 75.66
Step by Step Solution
- Step 1: Write the proportion equation
56.84 : 84.82 = 50.70 : x - Step 2: Convert to fraction form
56.84/84.82 = 50.70/x - Step 3: Cross multiply
56.84x = 84.82 × 50.70 - Step 4: Simplify right side
56.84x = 4,300.44 - Step 5: Solve for x
x = 4,300.44/56.84 - Step 6: Final answer
x = 75.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.