Finding the Fourth Proportional to 71,322.24, 106,983.26 and 21,402.26
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Solution
The fourth proportional to 71,322.24, 106,983.26 and 21,402.26 is: 32,103.35
Step by Step Solution
- Step 1: Write the proportion equation
71,322.24 : 106,983.26 = 21,402.26 : x - Step 2: Convert to fraction form
71,322.24/106,983.26 = 21,402.26/x - Step 3: Cross multiply
71,322.24x = 106,983.26 × 21,402.26 - Step 4: Simplify right side
71,322.24x = 2,289,682,904.24 - Step 5: Solve for x
x = 2,289,682,904.24/71,322.24 - Step 6: Final answer
x = 32,103.35
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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.