Finding the Fourth Proportional to 72,947.99, 100,751.26 and 49,033.14
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Solution
The fourth proportional to 72,947.99, 100,751.26 and 49,033.14 is: 67,721.55
Step by Step Solution
- Step 1: Write the proportion equation
72,947.99 : 100,751.26 = 49,033.14 : x - Step 2: Convert to fraction form
72,947.99/100,751.26 = 49,033.14/x - Step 3: Cross multiply
72,947.99x = 100,751.26 × 49,033.14 - Step 4: Simplify right side
72,947.99x = 4,940,150,636.76 - Step 5: Solve for x
x = 4,940,150,636.76/72,947.99 - Step 6: Final answer
x = 67,721.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.