Finding the Fourth Proportional to 87,021.21, 130,467.97 and 27,822.81
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Solution
The fourth proportional to 87,021.21, 130,467.97 and 27,822.81 is: 41,713.80
Step by Step Solution
- Step 1: Write the proportion equation
87,021.21 : 130,467.97 = 27,822.81 : x - Step 2: Convert to fraction form
87,021.21/130,467.97 = 27,822.81/x - Step 3: Cross multiply
87,021.21x = 130,467.97 × 27,822.81 - Step 4: Simplify right side
87,021.21x = 3,629,985,540.40 - Step 5: Solve for x
x = 3,629,985,540.40/87,021.21 - Step 6: Final answer
x = 41,713.80
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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.