Finding the Fourth Proportional to 83,880.54, 115,716.99 and 49,869.74
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Solution
The fourth proportional to 83,880.54, 115,716.99 and 49,869.74 is: 68,797.55
Step by Step Solution
- Step 1: Write the proportion equation
83,880.54 : 115,716.99 = 49,869.74 : x - Step 2: Convert to fraction form
83,880.54/115,716.99 = 49,869.74/x - Step 3: Cross multiply
83,880.54x = 115,716.99 × 49,869.74 - Step 4: Simplify right side
83,880.54x = 5,770,775,626.30 - Step 5: Solve for x
x = 5,770,775,626.30/83,880.54 - Step 6: Final answer
x = 68,797.55
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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.