Finding the Fourth Proportional to 67,183.56, 100,771.74 and 20,432.79
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Solution
The fourth proportional to 67,183.56, 100,771.74 and 20,432.79 is: 30,648.09
Step by Step Solution
- Step 1: Write the proportion equation
67,183.56 : 100,771.74 = 20,432.79 : x - Step 2: Convert to fraction form
67,183.56/100,771.74 = 20,432.79/x - Step 3: Cross multiply
67,183.56x = 100,771.74 × 20,432.79 - Step 4: Simplify right side
67,183.56x = 2,059,047,801.35 - Step 5: Solve for x
x = 2,059,047,801.35/67,183.56 - Step 6: Final answer
x = 30,648.09
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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.