Finding the Fourth Proportional to 84.03, 125.96 and 56.99
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Solution
The fourth proportional to 84.03, 125.96 and 56.99 is: 85.42
Step by Step Solution
- Step 1: Write the proportion equation
84.03 : 125.96 = 56.99 : x - Step 2: Convert to fraction form
84.03/125.96 = 56.99/x - Step 3: Cross multiply
84.03x = 125.96 × 56.99 - Step 4: Simplify right side
84.03x = 7,177.55 - Step 5: Solve for x
x = 7,177.55/84.03 - Step 6: Final answer
x = 85.42
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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.