Finding the Fourth Proportional to 87,961.86, 131,942.88 and 21,401.99
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Solution
The fourth proportional to 87,961.86, 131,942.88 and 21,401.99 is: 32,103.00
Step by Step Solution
- Step 1: Write the proportion equation
87,961.86 : 131,942.88 = 21,401.99 : x - Step 2: Convert to fraction form
87,961.86/131,942.88 = 21,401.99/x - Step 3: Cross multiply
87,961.86x = 131,942.88 × 21,401.99 - Step 4: Simplify right side
87,961.86x = 2,823,839,538.62 - Step 5: Solve for x
x = 2,823,839,538.62/87,961.86 - Step 6: Final answer
x = 32,103.00
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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.