Finding the Fourth Proportional to 80,440.14, 120,660.24 and 27,820.92
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Solution
The fourth proportional to 80,440.14, 120,660.24 and 27,820.92 is: 41,731.39
Step by Step Solution
- Step 1: Write the proportion equation
80,440.14 : 120,660.24 = 27,820.92 : x - Step 2: Convert to fraction form
80,440.14/120,660.24 = 27,820.92/x - Step 3: Cross multiply
80,440.14x = 120,660.24 × 27,820.92 - Step 4: Simplify right side
80,440.14x = 3,356,878,884.22 - Step 5: Solve for x
x = 3,356,878,884.22/80,440.14 - Step 6: Final answer
x = 41,731.39
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1.5x scale
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.