Finding the Fourth Proportional to 86,879.28, 130,255.12 and 27,680.88
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Solution
The fourth proportional to 86,879.28, 130,255.12 and 27,680.88 is: 41,500.99
Step by Step Solution
- Step 1: Write the proportion equation
86,879.28 : 130,255.12 = 27,680.88 : x - Step 2: Convert to fraction form
86,879.28/130,255.12 = 27,680.88/x - Step 3: Cross multiply
86,879.28x = 130,255.12 × 27,680.88 - Step 4: Simplify right side
86,879.28x = 3,605,576,346.11 - Step 5: Solve for x
x = 3,605,576,346.11/86,879.28 - Step 6: Final answer
x = 41,500.99
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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.