Finding the Fourth Proportional to 80,851.67, 121,129.73 and 58,609.88
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Solution
The fourth proportional to 80,851.67, 121,129.73 and 58,609.88 is: 87,807.70
Step by Step Solution
- Step 1: Write the proportion equation
80,851.67 : 121,129.73 = 58,609.88 : x - Step 2: Convert to fraction form
80,851.67/121,129.73 = 58,609.88/x - Step 3: Cross multiply
80,851.67x = 121,129.73 × 58,609.88 - Step 4: Simplify right side
80,851.67x = 7,099,398,715.06 - Step 5: Solve for x
x = 7,099,398,715.06/80,851.67 - Step 6: Final answer
x = 87,807.70
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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.