Finding the Fourth Proportional to 76,604.97, 115,015.11 and 39,191.88
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Solution
The fourth proportional to 76,604.97, 115,015.11 and 39,191.88 is: 58,842.90
Step by Step Solution
- Step 1: Write the proportion equation
76,604.97 : 115,015.11 = 39,191.88 : x - Step 2: Convert to fraction form
76,604.97/115,015.11 = 39,191.88/x - Step 3: Cross multiply
76,604.97x = 115,015.11 × 39,191.88 - Step 4: Simplify right side
76,604.97x = 4,507,658,673.64 - Step 5: Solve for x
x = 4,507,658,673.64/76,604.97 - Step 6: Final answer
x = 58,842.90
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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.