Finding the Fourth Proportional to 87,910.48, 121,306.74 and 49,665.94
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Solution
The fourth proportional to 87,910.48, 121,306.74 and 49,665.94 is: 68,533.50
Step by Step Solution
- Step 1: Write the proportion equation
87,910.48 : 121,306.74 = 49,665.94 : x - Step 2: Convert to fraction form
87,910.48/121,306.74 = 49,665.94/x - Step 3: Cross multiply
87,910.48x = 121,306.74 × 49,665.94 - Step 4: Simplify right side
87,910.48x = 6,024,813,270.44 - Step 5: Solve for x
x = 6,024,813,270.44/87,910.48 - Step 6: Final answer
x = 68,533.50
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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.