Finding the Fourth Proportional to 90,234.10, 135,324.87 and 27,051.70
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Solution
The fourth proportional to 90,234.10, 135,324.87 and 27,051.70 is: 40,569.67
Step by Step Solution
- Step 1: Write the proportion equation
90,234.10 : 135,324.87 = 27,051.70 : x - Step 2: Convert to fraction form
90,234.10/135,324.87 = 27,051.70/x - Step 3: Cross multiply
90,234.10x = 135,324.87 × 27,051.70 - Step 4: Simplify right side
90,234.10x = 3,660,767,785.78 - Step 5: Solve for x
x = 3,660,767,785.78/90,234.10 - Step 6: Final answer
x = 40,569.67
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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.