Finding the Fourth Proportional to 68,511.65, 102,755.35 and 18,595.63
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Solution
The fourth proportional to 68,511.65, 102,755.35 and 18,595.63 is: 27,890.15
Step by Step Solution
- Step 1: Write the proportion equation
68,511.65 : 102,755.35 = 18,595.63 : x - Step 2: Convert to fraction form
68,511.65/102,755.35 = 18,595.63/x - Step 3: Cross multiply
68,511.65x = 102,755.35 × 18,595.63 - Step 4: Simplify right side
68,511.65x = 1,910,800,469.12 - Step 5: Solve for x
x = 1,910,800,469.12/68,511.65 - Step 6: Final answer
x = 27,890.15
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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.