Finding the Fourth Proportional to 84,928.24, 117,198.12 and 47,201.68
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Solution
The fourth proportional to 84,928.24, 117,198.12 and 47,201.68 is: 65,136.73
Step by Step Solution
- Step 1: Write the proportion equation
84,928.24 : 117,198.12 = 47,201.68 : x - Step 2: Convert to fraction form
84,928.24/117,198.12 = 47,201.68/x - Step 3: Cross multiply
84,928.24x = 117,198.12 × 47,201.68 - Step 4: Simplify right side
84,928.24x = 5,531,948,156.84 - Step 5: Solve for x
x = 5,531,948,156.84/84,928.24 - Step 6: Final answer
x = 65,136.73
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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.