Finding the Fourth Proportional to 89,039.76, 122,874.87 and 48,755.99
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Solution
The fourth proportional to 89,039.76, 122,874.87 and 48,755.99 is: 67,283.28
Step by Step Solution
- Step 1: Write the proportion equation
89,039.76 : 122,874.87 = 48,755.99 : x - Step 2: Convert to fraction form
89,039.76/122,874.87 = 48,755.99/x - Step 3: Cross multiply
89,039.76x = 122,874.87 × 48,755.99 - Step 4: Simplify right side
89,039.76x = 5,990,886,422.99 - Step 5: Solve for x
x = 5,990,886,422.99/89,039.76 - Step 6: Final answer
x = 67,283.28
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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.