Finding the Fourth Proportional to 81,046.44, 121,575.60 and 21,880.80
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Solution
The fourth proportional to 81,046.44, 121,575.60 and 21,880.80 is: 32,822.80
Step by Step Solution
- Step 1: Write the proportion equation
81,046.44 : 121,575.60 = 21,880.80 : x - Step 2: Convert to fraction form
81,046.44/121,575.60 = 21,880.80/x - Step 3: Cross multiply
81,046.44x = 121,575.60 × 21,880.80 - Step 4: Simplify right side
81,046.44x = 2,660,171,388.48 - Step 5: Solve for x
x = 2,660,171,388.48/81,046.44 - Step 6: Final answer
x = 32,822.80
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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.