Finding the Fourth Proportional to 76,170.05, 114,253.84 and 20,766.05
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Solution
The fourth proportional to 76,170.05, 114,253.84 and 20,766.05 is: 31,148.74
Step by Step Solution
- Step 1: Write the proportion equation
76,170.05 : 114,253.84 = 20,766.05 : x - Step 2: Convert to fraction form
76,170.05/114,253.84 = 20,766.05/x - Step 3: Cross multiply
76,170.05x = 114,253.84 × 20,766.05 - Step 4: Simplify right side
76,170.05x = 2,372,600,954.13 - Step 5: Solve for x
x = 2,372,600,954.13/76,170.05 - Step 6: Final answer
x = 31,148.74
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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.