Finding the Fourth Proportional to 80,367.28, 120,579.84 and 27,782.08
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Solution
The fourth proportional to 80,367.28, 120,579.84 and 27,782.08 is: 41,683.12
Step by Step Solution
- Step 1: Write the proportion equation
80,367.28 : 120,579.84 = 27,782.08 : x - Step 2: Convert to fraction form
80,367.28/120,579.84 = 27,782.08/x - Step 3: Cross multiply
80,367.28x = 120,579.84 × 27,782.08 - Step 4: Simplify right side
80,367.28x = 3,349,958,761.27 - Step 5: Solve for x
x = 3,349,958,761.27/80,367.28 - Step 6: Final answer
x = 41,683.12
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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.