Finding the Fourth Proportional to 89,942.12, 134,889.68 and 26,745.23
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Solution
The fourth proportional to 89,942.12, 134,889.68 and 26,745.23 is: 40,110.85
Step by Step Solution
- Step 1: Write the proportion equation
89,942.12 : 134,889.68 = 26,745.23 : x - Step 2: Convert to fraction form
89,942.12/134,889.68 = 26,745.23/x - Step 3: Cross multiply
89,942.12x = 134,889.68 × 26,745.23 - Step 4: Simplify right side
89,942.12x = 3,607,654,708.05 - Step 5: Solve for x
x = 3,607,654,708.05/89,942.12 - Step 6: Final answer
x = 40,110.85
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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.