Finding the Fourth Proportional to 71,273.10, 106,910.10 and 18,682.13
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Solution
The fourth proportional to 71,273.10, 106,910.10 and 18,682.13 is: 28,023.31
Step by Step Solution
- Step 1: Write the proportion equation
71,273.10 : 106,910.10 = 18,682.13 : x - Step 2: Convert to fraction form
71,273.10/106,910.10 = 18,682.13/x - Step 3: Cross multiply
71,273.10x = 106,910.10 × 18,682.13 - Step 4: Simplify right side
71,273.10x = 1,997,307,851.96 - Step 5: Solve for x
x = 1,997,307,851.96/71,273.10 - Step 6: Final answer
x = 28,023.31
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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.