Finding the Fourth Proportional to 75,481.56, 113,226.12 and 28,738.08
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Solution
The fourth proportional to 75,481.56, 113,226.12 and 28,738.08 is: 43,108.56
Step by Step Solution
- Step 1: Write the proportion equation
75,481.56 : 113,226.12 = 28,738.08 : x - Step 2: Convert to fraction form
75,481.56/113,226.12 = 28,738.08/x - Step 3: Cross multiply
75,481.56x = 113,226.12 × 28,738.08 - Step 4: Simplify right side
75,481.56x = 3,253,901,294.65 - Step 5: Solve for x
x = 3,253,901,294.65/75,481.56 - Step 6: Final answer
x = 43,108.56
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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.