Finding the Fourth Proportional to 75,399.62, 113,081.80 and 22,079.74
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Solution
The fourth proportional to 75,399.62, 113,081.80 and 22,079.74 is: 33,114.45
Step by Step Solution
- Step 1: Write the proportion equation
75,399.62 : 113,081.80 = 22,079.74 : x - Step 2: Convert to fraction form
75,399.62/113,081.80 = 22,079.74/x - Step 3: Cross multiply
75,399.62x = 113,081.80 × 22,079.74 - Step 4: Simplify right side
75,399.62x = 2,496,816,742.73 - Step 5: Solve for x
x = 2,496,816,742.73/75,399.62 - Step 6: Final answer
x = 33,114.45
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1.5x scale
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.