Finding the Fourth Proportional to 74,057.44, 102,198.84 and 40,065.84
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Solution
The fourth proportional to 74,057.44, 102,198.84 and 40,065.84 is: 55,290.63
Step by Step Solution
- Step 1: Write the proportion equation
74,057.44 : 102,198.84 = 40,065.84 : x - Step 2: Convert to fraction form
74,057.44/102,198.84 = 40,065.84/x - Step 3: Cross multiply
74,057.44x = 102,198.84 × 40,065.84 - Step 4: Simplify right side
74,057.44x = 4,094,682,371.63 - Step 5: Solve for x
x = 4,094,682,371.63/74,057.44 - Step 6: Final answer
x = 55,290.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.