Finding the Fourth Proportional to 86,919.75, 119,949.26 and 47,175.75
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Solution
The fourth proportional to 86,919.75, 119,949.26 and 47,175.75 is: 65,102.54
Step by Step Solution
- Step 1: Write the proportion equation
86,919.75 : 119,949.26 = 47,175.75 : x - Step 2: Convert to fraction form
86,919.75/119,949.26 = 47,175.75/x - Step 3: Cross multiply
86,919.75x = 119,949.26 × 47,175.75 - Step 4: Simplify right side
86,919.75x = 5,658,696,066.57 - Step 5: Solve for x
x = 5,658,696,066.57/86,919.75 - Step 6: Final answer
x = 65,102.54
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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.