Finding the Fourth Proportional to 84,106.81, 126,162.48 and 27,183.14
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Solution
The fourth proportional to 84,106.81, 126,162.48 and 27,183.14 is: 40,775.45
Step by Step Solution
- Step 1: Write the proportion equation
84,106.81 : 126,162.48 = 27,183.14 : x - Step 2: Convert to fraction form
84,106.81/126,162.48 = 27,183.14/x - Step 3: Cross multiply
84,106.81x = 126,162.48 × 27,183.14 - Step 4: Simplify right side
84,106.81x = 3,429,492,857.58 - Step 5: Solve for x
x = 3,429,492,857.58/84,106.81 - Step 6: Final answer
x = 40,775.45
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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.