Finding the Fourth Proportional to 81,769.24, 122,653.56 and 22,604.80
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Solution
The fourth proportional to 81,769.24, 122,653.56 and 22,604.80 is: 33,907.12
Step by Step Solution
- Step 1: Write the proportion equation
81,769.24 : 122,653.56 = 22,604.80 : x - Step 2: Convert to fraction form
81,769.24/122,653.56 = 22,604.80/x - Step 3: Cross multiply
81,769.24x = 122,653.56 × 22,604.80 - Step 4: Simplify right side
81,769.24x = 2,772,559,193.09 - Step 5: Solve for x
x = 2,772,559,193.09/81,769.24 - Step 6: Final answer
x = 33,907.12
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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.