Finding the Fourth Proportional to 71.63, 107.48 and 25.99
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Solution
The fourth proportional to 71.63, 107.48 and 25.99 is: 39.00
Step by Step Solution
- Step 1: Write the proportion equation
71.63 : 107.48 = 25.99 : x - Step 2: Convert to fraction form
71.63/107.48 = 25.99/x - Step 3: Cross multiply
71.63x = 107.48 × 25.99 - Step 4: Simplify right side
71.63x = 2,793.20 - Step 5: Solve for x
x = 2,793.20/71.63 - Step 6: Final answer
x = 39.00
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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.