Finding the Fourth Proportional to 87,161.62, 130,742.51 and 60,917.62
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Solution
The fourth proportional to 87,161.62, 130,742.51 and 60,917.62 is: 91,376.49
Step by Step Solution
- Step 1: Write the proportion equation
87,161.62 : 130,742.51 = 60,917.62 : x - Step 2: Convert to fraction form
87,161.62/130,742.51 = 60,917.62/x - Step 3: Cross multiply
87,161.62x = 130,742.51 × 60,917.62 - Step 4: Simplify right side
87,161.62x = 7,964,522,542.03 - Step 5: Solve for x
x = 7,964,522,542.03/87,161.62 - Step 6: Final answer
x = 91,376.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.