Finding the Fourth Proportional to 74,481.12, 111,686.51 and 27,063.18
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Solution
The fourth proportional to 74,481.12, 111,686.51 and 27,063.18 is: 40,581.99
Step by Step Solution
- Step 1: Write the proportion equation
74,481.12 : 111,686.51 = 27,063.18 : x - Step 2: Convert to fraction form
74,481.12/111,686.51 = 27,063.18/x - Step 3: Cross multiply
74,481.12x = 111,686.51 × 27,063.18 - Step 4: Simplify right side
74,481.12x = 3,022,592,191.36 - Step 5: Solve for x
x = 3,022,592,191.36/74,481.12 - Step 6: Final answer
x = 40,581.99
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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.