Finding the Fourth Proportional to 80,291.65, 110,757.84 and 63,233.05
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Solution
The fourth proportional to 80,291.65, 110,757.84 and 63,233.05 is: 87,226.45
Step by Step Solution
- Step 1: Write the proportion equation
80,291.65 : 110,757.84 = 63,233.05 : x - Step 2: Convert to fraction form
80,291.65/110,757.84 = 63,233.05/x - Step 3: Cross multiply
80,291.65x = 110,757.84 × 63,233.05 - Step 4: Simplify right side
80,291.65x = 7,003,555,520.59 - Step 5: Solve for x
x = 7,003,555,520.59/80,291.65 - Step 6: Final answer
x = 87,226.45
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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.