Finding the Fourth Proportional to 83,941.80, 125,912.70 and 28,537.80
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Solution
The fourth proportional to 83,941.80, 125,912.70 and 28,537.80 is: 42,806.70
Step by Step Solution
- Step 1: Write the proportion equation
83,941.80 : 125,912.70 = 28,537.80 : x - Step 2: Convert to fraction form
83,941.80/125,912.70 = 28,537.80/x - Step 3: Cross multiply
83,941.80x = 125,912.70 × 28,537.80 - Step 4: Simplify right side
83,941.80x = 3,593,271,450.06 - Step 5: Solve for x
x = 3,593,271,450.06/83,941.80 - Step 6: Final answer
x = 42,806.70
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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.