Finding the Fourth Proportional to 75,874.24, 113,747.08 and 31,473.28
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Solution
The fourth proportional to 75,874.24, 113,747.08 and 31,473.28 is: 47,183.26
Step by Step Solution
- Step 1: Write the proportion equation
75,874.24 : 113,747.08 = 31,473.28 : x - Step 2: Convert to fraction form
75,874.24/113,747.08 = 31,473.28/x - Step 3: Cross multiply
75,874.24x = 113,747.08 × 31,473.28 - Step 4: Simplify right side
75,874.24x = 3,579,993,698.02 - Step 5: Solve for x
x = 3,579,993,698.02/75,874.24 - Step 6: Final answer
x = 47,183.26
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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.