Finding the Fourth Proportional to 75,745.81, 113,638.14 and 23,155.14
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Solution
The fourth proportional to 75,745.81, 113,638.14 and 23,155.14 is: 34,738.65
Step by Step Solution
- Step 1: Write the proportion equation
75,745.81 : 113,638.14 = 23,155.14 : x - Step 2: Convert to fraction form
75,745.81/113,638.14 = 23,155.14/x - Step 3: Cross multiply
75,745.81x = 113,638.14 × 23,155.14 - Step 4: Simplify right side
75,745.81x = 2,631,307,041.04 - Step 5: Solve for x
x = 2,631,307,041.04/75,745.81 - Step 6: Final answer
x = 34,738.65
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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.