Finding the Fourth Proportional to 72,120.89, 108,193.68 and 22,199.99
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Solution
The fourth proportional to 72,120.89, 108,193.68 and 22,199.99 is: 33,303.78
Step by Step Solution
- Step 1: Write the proportion equation
72,120.89 : 108,193.68 = 22,199.99 : x - Step 2: Convert to fraction form
72,120.89/108,193.68 = 22,199.99/x - Step 3: Cross multiply
72,120.89x = 108,193.68 × 22,199.99 - Step 4: Simplify right side
72,120.89x = 2,401,898,073.09 - Step 5: Solve for x
x = 2,401,898,073.09/72,120.89 - Step 6: Final answer
x = 33,303.78
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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.