Finding the Fourth Proportional to 75,917.20, 113,816.84 and 49,206.80
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Solution
The fourth proportional to 75,917.20, 113,816.84 and 49,206.80 is: 73,771.98
Step by Step Solution
- Step 1: Write the proportion equation
75,917.20 : 113,816.84 = 49,206.80 : x - Step 2: Convert to fraction form
75,917.20/113,816.84 = 49,206.80/x - Step 3: Cross multiply
75,917.20x = 113,816.84 × 49,206.80 - Step 4: Simplify right side
75,917.20x = 5,600,562,482.51 - Step 5: Solve for x
x = 5,600,562,482.51/75,917.20 - Step 6: Final answer
x = 73,771.98
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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.