Finding the Fourth Proportional to 80,438.14, 120,657.24 and 27,818.92
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Solution
The fourth proportional to 80,438.14, 120,657.24 and 27,818.92 is: 41,728.39
Step by Step Solution
- Step 1: Write the proportion equation
80,438.14 : 120,657.24 = 27,818.92 : x - Step 2: Convert to fraction form
80,438.14/120,657.24 = 27,818.92/x - Step 3: Cross multiply
80,438.14x = 120,657.24 × 27,818.92 - Step 4: Simplify right side
80,438.14x = 3,356,554,106.98 - Step 5: Solve for x
x = 3,356,554,106.98/80,438.14 - Step 6: Final answer
x = 41,728.39
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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.