Finding the Fourth Proportional to 80,735.36, 111,469.68 and 50,532.96
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Solution
The fourth proportional to 80,735.36, 111,469.68 and 50,532.96 is: 69,769.84
Step by Step Solution
- Step 1: Write the proportion equation
80,735.36 : 111,469.68 = 50,532.96 : x - Step 2: Convert to fraction form
80,735.36/111,469.68 = 50,532.96/x - Step 3: Cross multiply
80,735.36x = 111,469.68 × 50,532.96 - Step 4: Simplify right side
80,735.36x = 5,632,892,880.65 - Step 5: Solve for x
x = 5,632,892,880.65/80,735.36 - Step 6: Final answer
x = 69,769.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.