Finding the Fourth Proportional to 80,711.74, 111,383.69 and 44,905.08
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Solution
The fourth proportional to 80,711.74, 111,383.69 and 44,905.08 is: 61,969.84
Step by Step Solution
- Step 1: Write the proportion equation
80,711.74 : 111,383.69 = 44,905.08 : x - Step 2: Convert to fraction form
80,711.74/111,383.69 = 44,905.08/x - Step 3: Cross multiply
80,711.74x = 111,383.69 × 44,905.08 - Step 4: Simplify right side
80,711.74x = 5,001,693,510.15 - Step 5: Solve for x
x = 5,001,693,510.15/80,711.74 - Step 6: Final answer
x = 61,969.84
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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.