Finding the Fourth Proportional to 91,274.97, 125,816.56 and 83,943.05
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Solution
The fourth proportional to 91,274.97, 125,816.56 and 83,943.05 is: 115,709.99
Step by Step Solution
- Step 1: Write the proportion equation
91,274.97 : 125,816.56 = 83,943.05 : x - Step 2: Convert to fraction form
91,274.97/125,816.56 = 83,943.05/x - Step 3: Cross multiply
91,274.97x = 125,816.56 × 83,943.05 - Step 4: Simplify right side
91,274.97x = 10,561,425,786.91 - Step 5: Solve for x
x = 10,561,425,786.91/91,274.97 - Step 6: Final answer
x = 115,709.99
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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.