Finding the Fourth Proportional to 84,122.28, 126,170.49 and 30,801.70
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Solution
The fourth proportional to 84,122.28, 126,170.49 and 30,801.70 is: 46,197.82
Step by Step Solution
- Step 1: Write the proportion equation
84,122.28 : 126,170.49 = 30,801.70 : x - Step 2: Convert to fraction form
84,122.28/126,170.49 = 30,801.70/x - Step 3: Cross multiply
84,122.28x = 126,170.49 × 30,801.70 - Step 4: Simplify right side
84,122.28x = 3,886,265,855.05 - Step 5: Solve for x
x = 3,886,265,855.05/84,122.28 - Step 6: Final answer
x = 46,197.82
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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.