Finding the Fourth Proportional to 86,729.24, 119,670.72 and 48,489.56
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Solution
The fourth proportional to 86,729.24, 119,670.72 and 48,489.56 is: 66,906.85
Step by Step Solution
- Step 1: Write the proportion equation
86,729.24 : 119,670.72 = 48,489.56 : x - Step 2: Convert to fraction form
86,729.24/119,670.72 = 48,489.56/x - Step 3: Cross multiply
86,729.24x = 119,670.72 × 48,489.56 - Step 4: Simplify right side
86,729.24x = 5,802,780,557.68 - Step 5: Solve for x
x = 5,802,780,557.68/86,729.24 - Step 6: Final answer
x = 66,906.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.