Finding the Fourth Proportional to 83,400.28, 115,087.97 and 47,593.62
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Solution
The fourth proportional to 83,400.28, 115,087.97 and 47,593.62 is: 65,676.68
Step by Step Solution
- Step 1: Write the proportion equation
83,400.28 : 115,087.97 = 47,593.62 : x - Step 2: Convert to fraction form
83,400.28/115,087.97 = 47,593.62/x - Step 3: Cross multiply
83,400.28x = 115,087.97 × 47,593.62 - Step 4: Simplify right side
83,400.28x = 5,477,453,229.74 - Step 5: Solve for x
x = 5,477,453,229.74/83,400.28 - Step 6: Final answer
x = 65,676.68
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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.