Finding the Fourth Proportional to 75,427.38, 104,108.49 and 43,591.68
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Solution
The fourth proportional to 75,427.38, 104,108.49 and 43,591.68 is: 60,167.33
Step by Step Solution
- Step 1: Write the proportion equation
75,427.38 : 104,108.49 = 43,591.68 : x - Step 2: Convert to fraction form
75,427.38/104,108.49 = 43,591.68/x - Step 3: Cross multiply
75,427.38x = 104,108.49 × 43,591.68 - Step 4: Simplify right side
75,427.38x = 4,538,263,981.36 - Step 5: Solve for x
x = 4,538,263,981.36/75,427.38 - Step 6: Final answer
x = 60,167.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.