Finding the Fourth Proportional to 76,091.14, 104,857.74 and 54,830.26
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Solution
The fourth proportional to 76,091.14, 104,857.74 and 54,830.26 is: 75,559.09
Step by Step Solution
- Step 1: Write the proportion equation
76,091.14 : 104,857.74 = 54,830.26 : x - Step 2: Convert to fraction form
76,091.14/104,857.74 = 54,830.26/x - Step 3: Cross multiply
76,091.14x = 104,857.74 × 54,830.26 - Step 4: Simplify right side
76,091.14x = 5,749,377,147.21 - Step 5: Solve for x
x = 5,749,377,147.21/76,091.14 - Step 6: Final answer
x = 75,559.09
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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.