Finding the Fourth Proportional to 73,087.93, 100,861.15 and 39,553.93
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Solution
The fourth proportional to 73,087.93, 100,861.15 and 39,553.93 is: 54,584.32
Step by Step Solution
- Step 1: Write the proportion equation
73,087.93 : 100,861.15 = 39,553.93 : x - Step 2: Convert to fraction form
73,087.93/100,861.15 = 39,553.93/x - Step 3: Cross multiply
73,087.93x = 100,861.15 × 39,553.93 - Step 4: Simplify right side
73,087.93x = 3,989,454,669.05 - Step 5: Solve for x
x = 3,989,454,669.05/73,087.93 - Step 6: Final answer
x = 54,584.32
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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.