Finding the Fourth Proportional to 83,193.90, 124,790.74 and 20,013.99
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Solution
The fourth proportional to 83,193.90, 124,790.74 and 20,013.99 is: 30,020.96
Step by Step Solution
- Step 1: Write the proportion equation
83,193.90 : 124,790.74 = 20,013.99 : x - Step 2: Convert to fraction form
83,193.90/124,790.74 = 20,013.99/x - Step 3: Cross multiply
83,193.90x = 124,790.74 × 20,013.99 - Step 4: Simplify right side
83,193.90x = 2,497,560,622.45 - Step 5: Solve for x
x = 2,497,560,622.45/83,193.90 - Step 6: Final answer
x = 30,020.96
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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.