Finding the Fourth Proportional to 75,745.63, 113,618.44 and 20,341.63
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Solution
The fourth proportional to 75,745.63, 113,618.44 and 20,341.63 is: 30,512.44
Step by Step Solution
- Step 1: Write the proportion equation
75,745.63 : 113,618.44 = 20,341.63 : x - Step 2: Convert to fraction form
75,745.63/113,618.44 = 20,341.63/x - Step 3: Cross multiply
75,745.63x = 113,618.44 × 20,341.63 - Step 4: Simplify right side
75,745.63x = 2,311,183,699.57 - Step 5: Solve for x
x = 2,311,183,699.57/75,745.63 - Step 6: Final answer
x = 30,512.44
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1.5x scale
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.