Finding the Fourth Proportional to 84.24, 125.93 and 63.76
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Solution
The fourth proportional to 84.24, 125.93 and 63.76 is: 95.31
Step by Step Solution
- Step 1: Write the proportion equation
84.24 : 125.93 = 63.76 : x - Step 2: Convert to fraction form
84.24/125.93 = 63.76/x - Step 3: Cross multiply
84.24x = 125.93 × 63.76 - Step 4: Simplify right side
84.24x = 8,029.30 - Step 5: Solve for x
x = 8,029.30/84.24 - Step 6: Final answer
x = 95.31
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.