Finding the Fourth Proportional to 75,725.44, 112,694.24 and 73,202.68
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Solution
The fourth proportional to 75,725.44, 112,694.24 and 73,202.68 is: 108,939.88
Step by Step Solution
- Step 1: Write the proportion equation
75,725.44 : 112,694.24 = 73,202.68 : x - Step 2: Convert to fraction form
75,725.44/112,694.24 = 73,202.68/x - Step 3: Cross multiply
75,725.44x = 112,694.24 × 73,202.68 - Step 4: Simplify right side
75,725.44x = 8,249,520,388.56 - Step 5: Solve for x
x = 8,249,520,388.56/75,725.44 - Step 6: Final answer
x = 108,939.88
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.