Finding the Fourth Proportional to 81,514.42, 122,289.22 and 25,353.42
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Solution
The fourth proportional to 81,514.42, 122,289.22 and 25,353.42 is: 38,035.60
Step by Step Solution
- Step 1: Write the proportion equation
81,514.42 : 122,289.22 = 25,353.42 : x - Step 2: Convert to fraction form
81,514.42/122,289.22 = 25,353.42/x - Step 3: Cross multiply
81,514.42x = 122,289.22 × 25,353.42 - Step 4: Simplify right side
81,514.42x = 3,100,449,956.13 - Step 5: Solve for x
x = 3,100,449,956.13/81,514.42 - Step 6: Final answer
x = 38,035.60
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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.