Finding the Fourth Proportional to 75,305.36, 103,921.80 and 41,771.36
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Solution
The fourth proportional to 75,305.36, 103,921.80 and 41,771.36 is: 57,644.70
Step by Step Solution
- Step 1: Write the proportion equation
75,305.36 : 103,921.80 = 41,771.36 : x - Step 2: Convert to fraction form
75,305.36/103,921.80 = 41,771.36/x - Step 3: Cross multiply
75,305.36x = 103,921.80 × 41,771.36 - Step 4: Simplify right side
75,305.36x = 4,340,954,919.65 - Step 5: Solve for x
x = 4,340,954,919.65/75,305.36 - Step 6: Final answer
x = 57,644.70
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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.