Finding the Fourth Proportional to 80,760.96, 121,115.57 and 26,715.60
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Solution
The fourth proportional to 80,760.96, 121,115.57 and 26,715.60 is: 40,064.84
Step by Step Solution
- Step 1: Write the proportion equation
80,760.96 : 121,115.57 = 26,715.60 : x - Step 2: Convert to fraction form
80,760.96/121,115.57 = 26,715.60/x - Step 3: Cross multiply
80,760.96x = 121,115.57 × 26,715.60 - Step 4: Simplify right side
80,760.96x = 3,235,674,988.31 - Step 5: Solve for x
x = 3,235,674,988.31/80,760.96 - Step 6: Final answer
x = 40,064.84
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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.