Finding the Fourth Proportional to 90,709.14, 125,180.10 and 49,874.99
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Solution
The fourth proportional to 90,709.14, 125,180.10 and 49,874.99 is: 68,828.30
Step by Step Solution
- Step 1: Write the proportion equation
90,709.14 : 125,180.10 = 49,874.99 : x - Step 2: Convert to fraction form
90,709.14/125,180.10 = 49,874.99/x - Step 3: Cross multiply
90,709.14x = 125,180.10 × 49,874.99 - Step 4: Simplify right side
90,709.14x = 6,243,355,609.80 - Step 5: Solve for x
x = 6,243,355,609.80/90,709.14 - Step 6: Final answer
x = 68,828.30
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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.