Finding the Fourth Proportional to 71,826.38, 107,739.57 and 19,234.70
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Solution
The fourth proportional to 71,826.38, 107,739.57 and 19,234.70 is: 28,852.04
Step by Step Solution
- Step 1: Write the proportion equation
71,826.38 : 107,739.57 = 19,234.70 : x - Step 2: Convert to fraction form
71,826.38/107,739.57 = 19,234.70/x - Step 3: Cross multiply
71,826.38x = 107,739.57 × 19,234.70 - Step 4: Simplify right side
71,826.38x = 2,072,337,768.38 - Step 5: Solve for x
x = 2,072,337,768.38/71,826.38 - Step 6: Final answer
x = 28,852.04
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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.