Finding the Fourth Proportional to 75,808.70, 113,620.81 and 53,628.47
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Solution
The fourth proportional to 75,808.70, 113,620.81 and 53,628.47 is: 80,377.45
Step by Step Solution
- Step 1: Write the proportion equation
75,808.70 : 113,620.81 = 53,628.47 : x - Step 2: Convert to fraction form
75,808.70/113,620.81 = 53,628.47/x - Step 3: Cross multiply
75,808.70x = 113,620.81 × 53,628.47 - Step 4: Simplify right side
75,808.70x = 6,093,310,200.46 - Step 5: Solve for x
x = 6,093,310,200.46/75,808.70 - Step 6: Final answer
x = 80,377.45
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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.