Finding the Fourth Proportional to 71,644.20, 107,466.30 and 49,525.80
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Solution
The fourth proportional to 71,644.20, 107,466.30 and 49,525.80 is: 74,288.70
Step by Step Solution
- Step 1: Write the proportion equation
71,644.20 : 107,466.30 = 49,525.80 : x - Step 2: Convert to fraction form
71,644.20/107,466.30 = 49,525.80/x - Step 3: Cross multiply
71,644.20x = 107,466.30 × 49,525.80 - Step 4: Simplify right side
71,644.20x = 5,322,354,480.54 - Step 5: Solve for x
x = 5,322,354,480.54/71,644.20 - Step 6: Final answer
x = 74,288.70
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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.