Finding the Fourth Proportional to 80,467.22, 111,037.43 and 47,755.99
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Solution
The fourth proportional to 80,467.22, 111,037.43 and 47,755.99 is: 65,898.91
Step by Step Solution
- Step 1: Write the proportion equation
80,467.22 : 111,037.43 = 47,755.99 : x - Step 2: Convert to fraction form
80,467.22/111,037.43 = 47,755.99/x - Step 3: Cross multiply
80,467.22x = 111,037.43 × 47,755.99 - Step 4: Simplify right side
80,467.22x = 5,302,702,396.71 - Step 5: Solve for x
x = 5,302,702,396.71/80,467.22 - Step 6: Final answer
x = 65,898.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.