Finding the Fourth Proportional to 76,879.13, 115,232.42 and 58,098.26
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Solution
The fourth proportional to 76,879.13, 115,232.42 and 58,098.26 is: 87,082.20
Step by Step Solution
- Step 1: Write the proportion equation
76,879.13 : 115,232.42 = 58,098.26 : x - Step 2: Convert to fraction form
76,879.13/115,232.42 = 58,098.26/x - Step 3: Cross multiply
76,879.13x = 115,232.42 × 58,098.26 - Step 4: Simplify right side
76,879.13x = 6,694,803,530.92 - Step 5: Solve for x
x = 6,694,803,530.92/76,879.13 - Step 6: Final answer
x = 87,082.20
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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.