Finding the Fourth Proportional to 86,919.76, 119,955.24 and 48,680.08
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Solution
The fourth proportional to 86,919.76, 119,955.24 and 48,680.08 is: 67,181.85
Step by Step Solution
- Step 1: Write the proportion equation
86,919.76 : 119,955.24 = 48,680.08 : x - Step 2: Convert to fraction form
86,919.76/119,955.24 = 48,680.08/x - Step 3: Cross multiply
86,919.76x = 119,955.24 × 48,680.08 - Step 4: Simplify right side
86,919.76x = 5,839,430,679.62 - Step 5: Solve for x
x = 5,839,430,679.62/86,919.76 - Step 6: Final answer
x = 67,181.85
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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.