Finding the Fourth Proportional to 86,154.23, 129,231.21 and 26,994.44
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Solution
The fourth proportional to 86,154.23, 129,231.21 and 26,994.44 is: 40,491.62
Step by Step Solution
- Step 1: Write the proportion equation
86,154.23 : 129,231.21 = 26,994.44 : x - Step 2: Convert to fraction form
86,154.23/129,231.21 = 26,994.44/x - Step 3: Cross multiply
86,154.23x = 129,231.21 × 26,994.44 - Step 4: Simplify right side
86,154.23x = 3,488,524,144.47 - Step 5: Solve for x
x = 3,488,524,144.47/86,154.23 - Step 6: Final answer
x = 40,491.62
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1.5x scale
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.