Finding the Fourth Proportional to 76,958.63, 115,455.26 and 27,042.18
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Solution
The fourth proportional to 76,958.63, 115,455.26 and 27,042.18 is: 40,569.35
Step by Step Solution
- Step 1: Write the proportion equation
76,958.63 : 115,455.26 = 27,042.18 : x - Step 2: Convert to fraction form
76,958.63/115,455.26 = 27,042.18/x - Step 3: Cross multiply
76,958.63x = 115,455.26 × 27,042.18 - Step 4: Simplify right side
76,958.63x = 3,122,161,922.87 - Step 5: Solve for x
x = 3,122,161,922.87/76,958.63 - Step 6: Final answer
x = 40,569.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.