Finding the Fourth Proportional to 80,358.89, 120,515.09 and 27,044.99
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Solution
The fourth proportional to 80,358.89, 120,515.09 and 27,044.99 is: 40,559.66
Step by Step Solution
- Step 1: Write the proportion equation
80,358.89 : 120,515.09 = 27,044.99 : x - Step 2: Convert to fraction form
80,358.89/120,515.09 = 27,044.99/x - Step 3: Cross multiply
80,358.89x = 120,515.09 × 27,044.99 - Step 4: Simplify right side
80,358.89x = 3,259,329,403.90 - Step 5: Solve for x
x = 3,259,329,403.90/80,358.89 - Step 6: Final answer
x = 40,559.66
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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.