Finding the Fourth Proportional to 81,626.22, 122,486.60 and 34,237.09
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Solution
The fourth proportional to 81,626.22, 122,486.60 and 34,237.09 is: 51,375.46
Step by Step Solution
- Step 1: Write the proportion equation
81,626.22 : 122,486.60 = 34,237.09 : x - Step 2: Convert to fraction form
81,626.22/122,486.60 = 34,237.09/x - Step 3: Cross multiply
81,626.22x = 122,486.60 × 34,237.09 - Step 4: Simplify right side
81,626.22x = 4,193,584,576.81 - Step 5: Solve for x
x = 4,193,584,576.81/81,626.22 - Step 6: Final answer
x = 51,375.46
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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.