Finding the Fourth Proportional to 84,103.22, 126,154.81 and 57,728.00
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Solution
The fourth proportional to 84,103.22, 126,154.81 and 57,728.00 is: 86,591.99
Step by Step Solution
- Step 1: Write the proportion equation
84,103.22 : 126,154.81 = 57,728.00 : x - Step 2: Convert to fraction form
84,103.22/126,154.81 = 57,728.00/x - Step 3: Cross multiply
84,103.22x = 126,154.81 × 57,728.00 - Step 4: Simplify right side
84,103.22x = 7,282,665,042.75 - Step 5: Solve for x
x = 7,282,665,042.75/84,103.22 - Step 6: Final answer
x = 86,591.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.