Finding the Fourth Proportional to 79,680.20, 119,525.70 and 27,093.65
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Solution
The fourth proportional to 79,680.20, 119,525.70 and 27,093.65 is: 40,642.31
Step by Step Solution
- Step 1: Write the proportion equation
79,680.20 : 119,525.70 = 27,093.65 : x - Step 2: Convert to fraction form
79,680.20/119,525.70 = 27,093.65/x - Step 3: Cross multiply
79,680.20x = 119,525.70 × 27,093.65 - Step 4: Simplify right side
79,680.20x = 3,238,387,481.81 - Step 5: Solve for x
x = 3,238,387,481.81/79,680.20 - Step 6: Final answer
x = 40,642.31
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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.