Finding the Fourth Proportional to 81,828.48, 122,759.04 and 29,245.44
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Solution
The fourth proportional to 81,828.48, 122,759.04 and 29,245.44 is: 43,873.99
Step by Step Solution
- Step 1: Write the proportion equation
81,828.48 : 122,759.04 = 29,245.44 : x - Step 2: Convert to fraction form
81,828.48/122,759.04 = 29,245.44/x - Step 3: Cross multiply
81,828.48x = 122,759.04 × 29,245.44 - Step 4: Simplify right side
81,828.48x = 3,590,142,138.78 - Step 5: Solve for x
x = 3,590,142,138.78/81,828.48 - Step 6: Final answer
x = 43,873.99
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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.