Finding the Fourth Proportional to 55.40, 82.98 and 37.99
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Solution
The fourth proportional to 55.40, 82.98 and 37.99 is: 56.90
Step by Step Solution
- Step 1: Write the proportion equation
55.40 : 82.98 = 37.99 : x - Step 2: Convert to fraction form
55.40/82.98 = 37.99/x - Step 3: Cross multiply
55.40x = 82.98 × 37.99 - Step 4: Simplify right side
55.40x = 3,152.20 - Step 5: Solve for x
x = 3,152.20/55.40 - Step 6: Final answer
x = 56.90
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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.