Finding the Fourth Proportional to 56.84, 85.32 and 27.99
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Solution
The fourth proportional to 56.84, 85.32 and 27.99 is: 42.02
Step by Step Solution
- Step 1: Write the proportion equation
56.84 : 85.32 = 27.99 : x - Step 2: Convert to fraction form
56.84/85.32 = 27.99/x - Step 3: Cross multiply
56.84x = 85.32 × 27.99 - Step 4: Simplify right side
56.84x = 2,388.11 - Step 5: Solve for x
x = 2,388.11/56.84 - Step 6: Final answer
x = 42.02
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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.