Finding the Fourth Proportional to 75,189.74, 103,760.16 and 42,481.09
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Solution
The fourth proportional to 75,189.74, 103,760.16 and 42,481.09 is: 58,622.96
Step by Step Solution
- Step 1: Write the proportion equation
75,189.74 : 103,760.16 = 42,481.09 : x - Step 2: Convert to fraction form
75,189.74/103,760.16 = 42,481.09/x - Step 3: Cross multiply
75,189.74x = 103,760.16 × 42,481.09 - Step 4: Simplify right side
75,189.74x = 4,407,844,665.77 - Step 5: Solve for x
x = 4,407,844,665.77/75,189.74 - Step 6: Final answer
x = 58,622.96
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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.