Finding the Fourth Proportional to 83,021.13, 124,531.69 and 27,617.13
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Solution
The fourth proportional to 83,021.13, 124,531.69 and 27,617.13 is: 41,425.69
Step by Step Solution
- Step 1: Write the proportion equation
83,021.13 : 124,531.69 = 27,617.13 : x - Step 2: Convert to fraction form
83,021.13/124,531.69 = 27,617.13/x - Step 3: Cross multiply
83,021.13x = 124,531.69 × 27,617.13 - Step 4: Simplify right side
83,021.13x = 3,439,207,871.85 - Step 5: Solve for x
x = 3,439,207,871.85/83,021.13 - Step 6: Final answer
x = 41,425.69
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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.