Finding the Fourth Proportional to 80,504.26, 111,057.28 and 56,644.09
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Solution
The fourth proportional to 80,504.26, 111,057.28 and 56,644.09 is: 78,141.69
Step by Step Solution
- Step 1: Write the proportion equation
80,504.26 : 111,057.28 = 56,644.09 : x - Step 2: Convert to fraction form
80,504.26/111,057.28 = 56,644.09/x - Step 3: Cross multiply
80,504.26x = 111,057.28 × 56,644.09 - Step 4: Simplify right side
80,504.26x = 6,290,738,563.48 - Step 5: Solve for x
x = 6,290,738,563.48/80,504.26 - Step 6: Final answer
x = 78,141.69
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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.