Finding the Fourth Proportional to 128,579.97, 192,882.63 and 44,329.02
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Solution
The fourth proportional to 128,579.97, 192,882.63 and 44,329.02 is: 66,497.90
Step by Step Solution
- Step 1: Write the proportion equation
128,579.97 : 192,882.63 = 44,329.02 : x - Step 2: Convert to fraction form
128,579.97/192,882.63 = 44,329.02/x - Step 3: Cross multiply
128,579.97x = 192,882.63 × 44,329.02 - Step 4: Simplify right side
128,579.97x = 8,550,297,962.92 - Step 5: Solve for x
x = 8,550,297,962.92/128,579.97 - Step 6: Final answer
x = 66,497.90
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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.