Finding the Fourth Proportional to 83,945.20, 125,891.08 and 27,774.80
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Solution
The fourth proportional to 83,945.20, 125,891.08 and 27,774.80 is: 41,653.36
Step by Step Solution
- Step 1: Write the proportion equation
83,945.20 : 125,891.08 = 27,774.80 : x - Step 2: Convert to fraction form
83,945.20/125,891.08 = 27,774.80/x - Step 3: Cross multiply
83,945.20x = 125,891.08 × 27,774.80 - Step 4: Simplify right side
83,945.20x = 3,496,599,568.78 - Step 5: Solve for x
x = 3,496,599,568.78/83,945.20 - Step 6: Final answer
x = 41,653.36
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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.