Finding the Fourth Proportional to 80,805.20, 121,153.08 and 41,285.84
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Solution
The fourth proportional to 80,805.20, 121,153.08 and 41,285.84 is: 61,900.80
Step by Step Solution
- Step 1: Write the proportion equation
80,805.20 : 121,153.08 = 41,285.84 : x - Step 2: Convert to fraction form
80,805.20/121,153.08 = 41,285.84/x - Step 3: Cross multiply
80,805.20x = 121,153.08 × 41,285.84 - Step 4: Simplify right side
80,805.20x = 5,001,906,676.39 - Step 5: Solve for x
x = 5,001,906,676.39/80,805.20 - Step 6: Final answer
x = 61,900.80
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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.