Finding the Fourth Proportional to 84,125.76, 116,086.20 and 48,313.68
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Solution
The fourth proportional to 84,125.76, 116,086.20 and 48,313.68 is: 66,668.66
Step by Step Solution
- Step 1: Write the proportion equation
84,125.76 : 116,086.20 = 48,313.68 : x - Step 2: Convert to fraction form
84,125.76/116,086.20 = 48,313.68/x - Step 3: Cross multiply
84,125.76x = 116,086.20 × 48,313.68 - Step 4: Simplify right side
84,125.76x = 5,608,551,519.22 - Step 5: Solve for x
x = 5,608,551,519.22/84,125.76 - Step 6: Final answer
x = 66,668.66
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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.