Finding the Fourth Proportional to 87,029.24, 120,091.33 and 51,217.12
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Solution
The fourth proportional to 87,029.24, 120,091.33 and 51,217.12 is: 70,674.32
Step by Step Solution
- Step 1: Write the proportion equation
87,029.24 : 120,091.33 = 51,217.12 : x - Step 2: Convert to fraction form
87,029.24/120,091.33 = 51,217.12/x - Step 3: Cross multiply
87,029.24x = 120,091.33 × 51,217.12 - Step 4: Simplify right side
87,029.24x = 6,150,732,059.57 - Step 5: Solve for x
x = 6,150,732,059.57/87,029.24 - Step 6: Final answer
x = 70,674.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.