Finding the Fourth Proportional to 73,117.75, 100,902.63 and 39,583.75
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Solution
The fourth proportional to 73,117.75, 100,902.63 and 39,583.75 is: 54,625.65
Step by Step Solution
- Step 1: Write the proportion equation
73,117.75 : 100,902.63 = 39,583.75 : x - Step 2: Convert to fraction form
73,117.75/100,902.63 = 39,583.75/x - Step 3: Cross multiply
73,117.75x = 100,902.63 × 39,583.75 - Step 4: Simplify right side
73,117.75x = 3,994,104,480.26 - Step 5: Solve for x
x = 3,994,104,480.26/73,117.75 - Step 6: Final answer
x = 54,625.65
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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.