Finding the Fourth Proportional to 80,387.28, 120,609.84 and 27,802.08
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Solution
The fourth proportional to 80,387.28, 120,609.84 and 27,802.08 is: 41,713.12
Step by Step Solution
- Step 1: Write the proportion equation
80,387.28 : 120,609.84 = 27,802.08 : x - Step 2: Convert to fraction form
80,387.28/120,609.84 = 27,802.08/x - Step 3: Cross multiply
80,387.28x = 120,609.84 × 27,802.08 - Step 4: Simplify right side
80,387.28x = 3,353,204,420.47 - Step 5: Solve for x
x = 3,353,204,420.47/80,387.28 - Step 6: Final answer
x = 41,713.12
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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.