Finding the Fourth Proportional to 80,752.74, 121,142.94 and 27,439.08
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Solution
The fourth proportional to 80,752.74, 121,142.94 and 27,439.08 is: 41,163.32
Step by Step Solution
- Step 1: Write the proportion equation
80,752.74 : 121,142.94 = 27,439.08 : x - Step 2: Convert to fraction form
80,752.74/121,142.94 = 27,439.08/x - Step 3: Cross multiply
80,752.74x = 121,142.94 × 27,439.08 - Step 4: Simplify right side
80,752.74x = 3,324,050,822.10 - Step 5: Solve for x
x = 3,324,050,822.10/80,752.74 - Step 6: Final answer
x = 41,163.32
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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.