Finding the Fourth Proportional to 81,889.22, 122,836.26 and 22,729.26
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Solution
The fourth proportional to 81,889.22, 122,836.26 and 22,729.26 is: 34,094.56
Step by Step Solution
- Step 1: Write the proportion equation
81,889.22 : 122,836.26 = 22,729.26 : x - Step 2: Convert to fraction form
81,889.22/122,836.26 = 22,729.26/x - Step 3: Cross multiply
81,889.22x = 122,836.26 × 22,729.26 - Step 4: Simplify right side
81,889.22x = 2,791,977,290.97 - Step 5: Solve for x
x = 2,791,977,290.97/81,889.22 - Step 6: Final answer
x = 34,094.56
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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.