Finding the Fourth Proportional to 81,942.36, 122,924.34 and 29,357.88
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Solution
The fourth proportional to 81,942.36, 122,924.34 and 29,357.88 is: 44,040.69
Step by Step Solution
- Step 1: Write the proportion equation
81,942.36 : 122,924.34 = 29,357.88 : x - Step 2: Convert to fraction form
81,942.36/122,924.34 = 29,357.88/x - Step 3: Cross multiply
81,942.36x = 122,924.34 × 29,357.88 - Step 4: Simplify right side
81,942.36x = 3,608,798,022.80 - Step 5: Solve for x
x = 3,608,798,022.80/81,942.36 - Step 6: Final answer
x = 44,040.69
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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.