Finding the Fourth Proportional to 67,221.26, 100,720.94 and 39,062.28
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Solution
The fourth proportional to 67,221.26, 100,720.94 and 39,062.28 is: 58,528.95
Step by Step Solution
- Step 1: Write the proportion equation
67,221.26 : 100,720.94 = 39,062.28 : x - Step 2: Convert to fraction form
67,221.26/100,720.94 = 39,062.28/x - Step 3: Cross multiply
67,221.26x = 100,720.94 × 39,062.28 - Step 4: Simplify right side
67,221.26x = 3,934,389,560.14 - Step 5: Solve for x
x = 3,934,389,560.14/67,221.26 - Step 6: Final answer
x = 58,528.95
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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.