Finding the Fourth Proportional to 87,792.50, 121,153.50 and 49,560.09
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Solution
The fourth proportional to 87,792.50, 121,153.50 and 49,560.09 is: 68,392.84
Step by Step Solution
- Step 1: Write the proportion equation
87,792.50 : 121,153.50 = 49,560.09 : x - Step 2: Convert to fraction form
87,792.50/121,153.50 = 49,560.09/x - Step 3: Cross multiply
87,792.50x = 121,153.50 × 49,560.09 - Step 4: Simplify right side
87,792.50x = 6,004,378,363.82 - Step 5: Solve for x
x = 6,004,378,363.82/87,792.50 - Step 6: Final answer
x = 68,392.84
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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.