Finding the Fourth Proportional to 103,771.36, 155,660.64 and 33,651.28
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Solution
The fourth proportional to 103,771.36, 155,660.64 and 33,651.28 is: 50,478.09
Step by Step Solution
- Step 1: Write the proportion equation
103,771.36 : 155,660.64 = 33,651.28 : x - Step 2: Convert to fraction form
103,771.36/155,660.64 = 33,651.28/x - Step 3: Cross multiply
103,771.36x = 155,660.64 × 33,651.28 - Step 4: Simplify right side
103,771.36x = 5,238,179,781.62 - Step 5: Solve for x
x = 5,238,179,781.62/103,771.36 - Step 6: Final answer
x = 50,478.09
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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.