Finding the Fourth Proportional to 75,434.95, 113,173.61 and 22,128.19
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Solution
The fourth proportional to 75,434.95, 113,173.61 and 22,128.19 is: 33,198.50
Step by Step Solution
- Step 1: Write the proportion equation
75,434.95 : 113,173.61 = 22,128.19 : x - Step 2: Convert to fraction form
75,434.95/113,173.61 = 22,128.19/x - Step 3: Cross multiply
75,434.95x = 113,173.61 × 22,128.19 - Step 4: Simplify right side
75,434.95x = 2,504,326,751.49 - Step 5: Solve for x
x = 2,504,326,751.49/75,434.95 - Step 6: Final answer
x = 33,198.50
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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.