Finding the Fourth Proportional to 84,203.23, 126,324.95 and 28,043.81
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Solution
The fourth proportional to 84,203.23, 126,324.95 and 28,043.81 is: 42,072.41
Step by Step Solution
- Step 1: Write the proportion equation
84,203.23 : 126,324.95 = 28,043.81 : x - Step 2: Convert to fraction form
84,203.23/126,324.95 = 28,043.81/x - Step 3: Cross multiply
84,203.23x = 126,324.95 × 28,043.81 - Step 4: Simplify right side
84,203.23x = 3,542,632,896.06 - Step 5: Solve for x
x = 3,542,632,896.06/84,203.23 - Step 6: Final answer
x = 42,072.41
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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.