Finding the Fourth Proportional to 75,974.67, 104,843.21 and 41,981.40
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Solution
The fourth proportional to 75,974.67, 104,843.21 and 41,981.40 is: 57,933.32
Step by Step Solution
- Step 1: Write the proportion equation
75,974.67 : 104,843.21 = 41,981.40 : x - Step 2: Convert to fraction form
75,974.67/104,843.21 = 41,981.40/x - Step 3: Cross multiply
75,974.67x = 104,843.21 × 41,981.40 - Step 4: Simplify right side
75,974.67x = 4,401,464,526.39 - Step 5: Solve for x
x = 4,401,464,526.39/75,974.67 - Step 6: Final answer
x = 57,933.32
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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.