Finding the Fourth Proportional to 76,926.80, 115,441.80 and 27,006.80
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Solution
The fourth proportional to 76,926.80, 115,441.80 and 27,006.80 is: 40,528.32
Step by Step Solution
- Step 1: Write the proportion equation
76,926.80 : 115,441.80 = 27,006.80 : x - Step 2: Convert to fraction form
76,926.80/115,441.80 = 27,006.80/x - Step 3: Cross multiply
76,926.80x = 115,441.80 × 27,006.80 - Step 4: Simplify right side
76,926.80x = 3,117,713,604.24 - Step 5: Solve for x
x = 3,117,713,604.24/76,926.80 - Step 6: Final answer
x = 40,528.32
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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.