Finding the Fourth Proportional to 86,919.21, 119,938.59 and 48,673.44
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Solution
The fourth proportional to 86,919.21, 119,938.59 and 48,673.44 is: 67,163.79
Step by Step Solution
- Step 1: Write the proportion equation
86,919.21 : 119,938.59 = 48,673.44 : x - Step 2: Convert to fraction form
86,919.21/119,938.59 = 48,673.44/x - Step 3: Cross multiply
86,919.21x = 119,938.59 × 48,673.44 - Step 4: Simplify right side
86,919.21x = 5,837,823,764.05 - Step 5: Solve for x
x = 5,837,823,764.05/86,919.21 - Step 6: Final answer
x = 67,163.79
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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.