Finding the Fourth Proportional to 89,051.75, 122,891.45 and 48,768.02
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Solution
The fourth proportional to 89,051.75, 122,891.45 and 48,768.02 is: 67,299.88
Step by Step Solution
- Step 1: Write the proportion equation
89,051.75 : 122,891.45 = 48,768.02 : x - Step 2: Convert to fraction form
89,051.75/122,891.45 = 48,768.02/x - Step 3: Cross multiply
89,051.75x = 122,891.45 × 48,768.02 - Step 4: Simplify right side
89,051.75x = 5,993,171,833.13 - Step 5: Solve for x
x = 5,993,171,833.13/89,051.75 - Step 6: Final answer
x = 67,299.88
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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.