Finding the Fourth Proportional to 91,521.15, 126,299.25 and 51,234.99
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Solution
The fourth proportional to 91,521.15, 126,299.25 and 51,234.99 is: 70,704.32
Step by Step Solution
- Step 1: Write the proportion equation
91,521.15 : 126,299.25 = 51,234.99 : x - Step 2: Convert to fraction form
91,521.15/126,299.25 = 51,234.99/x - Step 3: Cross multiply
91,521.15x = 126,299.25 × 51,234.99 - Step 4: Simplify right side
91,521.15x = 6,470,940,810.76 - Step 5: Solve for x
x = 6,470,940,810.76/91,521.15 - Step 6: Final answer
x = 70,704.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.