Finding the Fourth Proportional to 68,491.98, 102,758.74 and 48,540.05
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Solution
The fourth proportional to 68,491.98, 102,758.74 and 48,540.05 is: 72,824.79
Step by Step Solution
- Step 1: Write the proportion equation
68,491.98 : 102,758.74 = 48,540.05 : x - Step 2: Convert to fraction form
68,491.98/102,758.74 = 48,540.05/x - Step 3: Cross multiply
68,491.98x = 102,758.74 × 48,540.05 - Step 4: Simplify right side
68,491.98x = 4,987,914,127.74 - Step 5: Solve for x
x = 4,987,914,127.74/68,491.98 - Step 6: Final answer
x = 72,824.79
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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.