Finding the Fourth Proportional to 87,107.75, 130,649.33 and 27,935.74
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Solution
The fourth proportional to 87,107.75, 130,649.33 and 27,935.74 is: 41,899.66
Step by Step Solution
- Step 1: Write the proportion equation
87,107.75 : 130,649.33 = 27,935.74 : x - Step 2: Convert to fraction form
87,107.75/130,649.33 = 27,935.74/x - Step 3: Cross multiply
87,107.75x = 130,649.33 × 27,935.74 - Step 4: Simplify right side
87,107.75x = 3,649,785,133.73 - Step 5: Solve for x
x = 3,649,785,133.73/87,107.75 - Step 6: Final answer
x = 41,899.66
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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.