Finding the Fourth Proportional to 86,470.26, 129,709.36 and 26,494.44
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Solution
The fourth proportional to 86,470.26, 129,709.36 and 26,494.44 is: 39,742.88
Step by Step Solution
- Step 1: Write the proportion equation
86,470.26 : 129,709.36 = 26,494.44 : x - Step 2: Convert to fraction form
86,470.26/129,709.36 = 26,494.44/x - Step 3: Cross multiply
86,470.26x = 129,709.36 × 26,494.44 - Step 4: Simplify right side
86,470.26x = 3,436,576,855.96 - Step 5: Solve for x
x = 3,436,576,855.96/86,470.26 - Step 6: Final answer
x = 39,742.88
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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.