Finding the Fourth Proportional to 81,522.78, 122,194.41 and 61,467.99
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Solution
The fourth proportional to 81,522.78, 122,194.41 and 61,467.99 is: 92,134.31
Step by Step Solution
- Step 1: Write the proportion equation
81,522.78 : 122,194.41 = 61,467.99 : x - Step 2: Convert to fraction form
81,522.78/122,194.41 = 61,467.99/x - Step 3: Cross multiply
81,522.78x = 122,194.41 × 61,467.99 - Step 4: Simplify right side
81,522.78x = 7,511,044,771.94 - Step 5: Solve for x
x = 7,511,044,771.94/81,522.78 - Step 6: Final answer
x = 92,134.31
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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.