Finding the Fourth Proportional to 68,466.11, 102,705.69 and 18,546.74
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Solution
The fourth proportional to 68,466.11, 102,705.69 and 18,546.74 is: 27,821.88
Step by Step Solution
- Step 1: Write the proportion equation
68,466.11 : 102,705.69 = 18,546.74 : x - Step 2: Convert to fraction form
68,466.11/102,705.69 = 18,546.74/x - Step 3: Cross multiply
68,466.11x = 102,705.69 × 18,546.74 - Step 4: Simplify right side
68,466.11x = 1,904,855,728.95 - Step 5: Solve for x
x = 1,904,855,728.95/68,466.11 - Step 6: Final answer
x = 27,821.88
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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.