Finding the Fourth Proportional to 56.95, 85.49 and 40.99
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Solution
The fourth proportional to 56.95, 85.49 and 40.99 is: 61.53
Step by Step Solution
- Step 1: Write the proportion equation
56.95 : 85.49 = 40.99 : x - Step 2: Convert to fraction form
56.95/85.49 = 40.99/x - Step 3: Cross multiply
56.95x = 85.49 × 40.99 - Step 4: Simplify right side
56.95x = 3,504.24 - Step 5: Solve for x
x = 3,504.24/56.95 - Step 6: Final answer
x = 61.53
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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.