Finding the Fourth Proportional to 75,620.74, 113,355.97 and 36,131.75
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Solution
The fourth proportional to 75,620.74, 113,355.97 and 36,131.75 is: 54,161.72
Step by Step Solution
- Step 1: Write the proportion equation
75,620.74 : 113,355.97 = 36,131.75 : x - Step 2: Convert to fraction form
75,620.74/113,355.97 = 36,131.75/x - Step 3: Cross multiply
75,620.74x = 113,355.97 × 36,131.75 - Step 4: Simplify right side
75,620.74x = 4,095,749,569.05 - Step 5: Solve for x
x = 4,095,749,569.05/75,620.74 - Step 6: Final answer
x = 54,161.72
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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.