Finding the Fourth Proportional to 107,798.40, 161,721.84 and 32,912.28
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Solution
The fourth proportional to 107,798.40, 161,721.84 and 32,912.28 is: 49,375.82
Step by Step Solution
- Step 1: Write the proportion equation
107,798.40 : 161,721.84 = 32,912.28 : x - Step 2: Convert to fraction form
107,798.40/161,721.84 = 32,912.28/x - Step 3: Cross multiply
107,798.40x = 161,721.84 × 32,912.28 - Step 4: Simplify right side
107,798.40x = 5,322,634,480.20 - Step 5: Solve for x
x = 5,322,634,480.20/107,798.40 - Step 6: Final answer
x = 49,375.82
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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.