Finding the Fourth Proportional to 84,212.36, 126,338.45 and 27,286.17
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Solution
The fourth proportional to 84,212.36, 126,338.45 and 27,286.17 is: 40,935.71
Step by Step Solution
- Step 1: Write the proportion equation
84,212.36 : 126,338.45 = 27,286.17 : x - Step 2: Convert to fraction form
84,212.36/126,338.45 = 27,286.17/x - Step 3: Cross multiply
84,212.36x = 126,338.45 × 27,286.17 - Step 4: Simplify right side
84,212.36x = 3,447,292,529.29 - Step 5: Solve for x
x = 3,447,292,529.29/84,212.36 - Step 6: Final answer
x = 40,935.71
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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.