Finding the Fourth Proportional to 71,241.76, 106,887.20 and 31,826.08
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Solution
The fourth proportional to 71,241.76, 106,887.20 and 31,826.08 is: 47,750.09
Step by Step Solution
- Step 1: Write the proportion equation
71,241.76 : 106,887.20 = 31,826.08 : x - Step 2: Convert to fraction form
71,241.76/106,887.20 = 31,826.08/x - Step 3: Cross multiply
71,241.76x = 106,887.20 × 31,826.08 - Step 4: Simplify right side
71,241.76x = 3,401,800,578.18 - Step 5: Solve for x
x = 3,401,800,578.18/71,241.76 - Step 6: Final answer
x = 47,750.09
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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.