Finding the Fourth Proportional to 76,694.67, 115,069.68 and 26,782.13
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Solution
The fourth proportional to 76,694.67, 115,069.68 and 26,782.13 is: 40,182.86
Step by Step Solution
- Step 1: Write the proportion equation
76,694.67 : 115,069.68 = 26,782.13 : x - Step 2: Convert to fraction form
76,694.67/115,069.68 = 26,782.13/x - Step 3: Cross multiply
76,694.67x = 115,069.68 × 26,782.13 - Step 4: Simplify right side
76,694.67x = 3,081,811,416.49 - Step 5: Solve for x
x = 3,081,811,416.49/76,694.67 - Step 6: Final answer
x = 40,182.86
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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.