Finding the Fourth Proportional to 56.06, 84.18 and 45.82
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Solution
The fourth proportional to 56.06, 84.18 and 45.82 is: 68.80
Step by Step Solution
- Step 1: Write the proportion equation
56.06 : 84.18 = 45.82 : x - Step 2: Convert to fraction form
56.06/84.18 = 45.82/x - Step 3: Cross multiply
56.06x = 84.18 × 45.82 - Step 4: Simplify right side
56.06x = 3,857.13 - Step 5: Solve for x
x = 3,857.13/56.06 - Step 6: Final answer
x = 68.80
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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.