Finding the Fourth Proportional to 76,738.99, 115,107.68 and 29,991.46
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Solution
The fourth proportional to 76,738.99, 115,107.68 and 29,991.46 is: 44,986.88
Step by Step Solution
- Step 1: Write the proportion equation
76,738.99 : 115,107.68 = 29,991.46 : x - Step 2: Convert to fraction form
76,738.99/115,107.68 = 29,991.46/x - Step 3: Cross multiply
76,738.99x = 115,107.68 × 29,991.46 - Step 4: Simplify right side
76,738.99x = 3,452,247,380.41 - Step 5: Solve for x
x = 3,452,247,380.41/76,738.99 - Step 6: Final answer
x = 44,986.88
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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.