Finding the Fourth Proportional to 87,270.54, 120,440.61 and 51,467.55
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Solution
The fourth proportional to 87,270.54, 120,440.61 and 51,467.55 is: 71,029.50
Step by Step Solution
- Step 1: Write the proportion equation
87,270.54 : 120,440.61 = 51,467.55 : x - Step 2: Convert to fraction form
87,270.54/120,440.61 = 51,467.55/x - Step 3: Cross multiply
87,270.54x = 120,440.61 × 51,467.55 - Step 4: Simplify right side
87,270.54x = 6,198,783,117.21 - Step 5: Solve for x
x = 6,198,783,117.21/87,270.54 - Step 6: Final answer
x = 71,029.50
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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.