Finding the Fourth Proportional to 75,918.40, 104,780.21 and 44,105.75
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Solution
The fourth proportional to 75,918.40, 104,780.21 and 44,105.75 is: 60,873.38
Step by Step Solution
- Step 1: Write the proportion equation
75,918.40 : 104,780.21 = 44,105.75 : x - Step 2: Convert to fraction form
75,918.40/104,780.21 = 44,105.75/x - Step 3: Cross multiply
75,918.40x = 104,780.21 × 44,105.75 - Step 4: Simplify right side
75,918.40x = 4,621,409,519.75 - Step 5: Solve for x
x = 4,621,409,519.75/75,918.40 - Step 6: Final answer
x = 60,873.38
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1.5x scale
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.