Finding the Fourth Proportional to 73,131.26, 109,701.14 and 20,544.84
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Solution
The fourth proportional to 73,131.26, 109,701.14 and 20,544.84 is: 30,818.45
Step by Step Solution
- Step 1: Write the proportion equation
73,131.26 : 109,701.14 = 20,544.84 : x - Step 2: Convert to fraction form
73,131.26/109,701.14 = 20,544.84/x - Step 3: Cross multiply
73,131.26x = 109,701.14 × 20,544.84 - Step 4: Simplify right side
73,131.26x = 2,253,792,266.39 - Step 5: Solve for x
x = 2,253,792,266.39/73,131.26 - Step 6: Final answer
x = 30,818.45
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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.