Finding the Fourth Proportional to 79,313.97, 109,453.44 and 43,504.28
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Solution
The fourth proportional to 79,313.97, 109,453.44 and 43,504.28 is: 60,035.99
Step by Step Solution
- Step 1: Write the proportion equation
79,313.97 : 109,453.44 = 43,504.28 : x - Step 2: Convert to fraction form
79,313.97/109,453.44 = 43,504.28/x - Step 3: Cross multiply
79,313.97x = 109,453.44 × 43,504.28 - Step 4: Simplify right side
79,313.97x = 4,761,693,100.72 - Step 5: Solve for x
x = 4,761,693,100.72/79,313.97 - Step 6: Final answer
x = 60,035.99
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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.