Finding the Fourth Proportional to 75,267.09, 103,873.38 and 49,728.63
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Solution
The fourth proportional to 75,267.09, 103,873.38 and 49,728.63 is: 68,628.68
Step by Step Solution
- Step 1: Write the proportion equation
75,267.09 : 103,873.38 = 49,728.63 : x - Step 2: Convert to fraction form
75,267.09/103,873.38 = 49,728.63/x - Step 3: Cross multiply
75,267.09x = 103,873.38 × 49,728.63 - Step 4: Simplify right side
75,267.09x = 5,165,480,880.87 - Step 5: Solve for x
x = 5,165,480,880.87/75,267.09 - Step 6: Final answer
x = 68,628.68
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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.