Finding the Fourth Proportional to 103,877.28, 155,821.68 and 33,778.08
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Solution
The fourth proportional to 103,877.28, 155,821.68 and 33,778.08 is: 50,668.99
Step by Step Solution
- Step 1: Write the proportion equation
103,877.28 : 155,821.68 = 33,778.08 : x - Step 2: Convert to fraction form
103,877.28/155,821.68 = 33,778.08/x - Step 3: Cross multiply
103,877.28x = 155,821.68 × 33,778.08 - Step 4: Simplify right side
103,877.28x = 5,263,357,172.77 - Step 5: Solve for x
x = 5,263,357,172.77/103,877.28 - Step 6: Final answer
x = 50,668.99
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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.