Finding the Fourth Proportional to 57.85, 86.80 and 44.99
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Solution
The fourth proportional to 57.85, 86.80 and 44.99 is: 67.50
Step by Step Solution
- Step 1: Write the proportion equation
57.85 : 86.80 = 44.99 : x - Step 2: Convert to fraction form
57.85/86.80 = 44.99/x - Step 3: Cross multiply
57.85x = 86.80 × 44.99 - Step 4: Simplify right side
57.85x = 3,905.13 - Step 5: Solve for x
x = 3,905.13/57.85 - Step 6: Final answer
x = 67.50
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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.