Finding the Fourth Proportional to 80,492.88, 120,711.98 and 27,890.09
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Solution
The fourth proportional to 80,492.88, 120,711.98 and 27,890.09 is: 41,825.66
Step by Step Solution
- Step 1: Write the proportion equation
80,492.88 : 120,711.98 = 27,890.09 : x - Step 2: Convert to fraction form
80,492.88/120,711.98 = 27,890.09/x - Step 3: Cross multiply
80,492.88x = 120,711.98 × 27,890.09 - Step 4: Simplify right side
80,492.88x = 3,366,667,986.28 - Step 5: Solve for x
x = 3,366,667,986.28/80,492.88 - Step 6: Final answer
x = 41,825.66
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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.