Finding the Fourth Proportional to 67,478.20, 101,246.10 and 32,399.80
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Solution
The fourth proportional to 67,478.20, 101,246.10 and 32,399.80 is: 48,613.53
Step by Step Solution
- Step 1: Write the proportion equation
67,478.20 : 101,246.10 = 32,399.80 : x - Step 2: Convert to fraction form
67,478.20/101,246.10 = 32,399.80/x - Step 3: Cross multiply
67,478.20x = 101,246.10 × 32,399.80 - Step 4: Simplify right side
67,478.20x = 3,280,353,390.78 - Step 5: Solve for x
x = 3,280,353,390.78/67,478.20 - Step 6: Final answer
x = 48,613.53
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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.