Finding the Fourth Proportional to 81,900.45, 122,850.61 and 22,736.09
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Solution
The fourth proportional to 81,900.45, 122,850.61 and 22,736.09 is: 34,104.12
Step by Step Solution
- Step 1: Write the proportion equation
81,900.45 : 122,850.61 = 22,736.09 : x - Step 2: Convert to fraction form
81,900.45/122,850.61 = 22,736.09/x - Step 3: Cross multiply
81,900.45x = 122,850.61 × 22,736.09 - Step 4: Simplify right side
81,900.45x = 2,793,142,775.80 - Step 5: Solve for x
x = 2,793,142,775.80/81,900.45 - Step 6: Final answer
x = 34,104.12
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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.