Finding the Fourth Proportional to 86,638.88, 119,568.60 and 68,880.44
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Solution
The fourth proportional to 86,638.88, 119,568.60 and 68,880.44 is: 95,060.53
Step by Step Solution
- Step 1: Write the proportion equation
86,638.88 : 119,568.60 = 68,880.44 : x - Step 2: Convert to fraction form
86,638.88/119,568.60 = 68,880.44/x - Step 3: Cross multiply
86,638.88x = 119,568.60 × 68,880.44 - Step 4: Simplify right side
86,638.88x = 8,235,937,778.18 - Step 5: Solve for x
x = 8,235,937,778.18/86,638.88 - Step 6: Final answer
x = 95,060.53
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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.