Finding the Fourth Proportional to 41,984.43, 57,990.54 and 30,480.99
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Solution
The fourth proportional to 41,984.43, 57,990.54 and 30,480.99 is: 42,101.54
Step by Step Solution
- Step 1: Write the proportion equation
41,984.43 : 57,990.54 = 30,480.99 : x - Step 2: Convert to fraction form
41,984.43/57,990.54 = 30,480.99/x - Step 3: Cross multiply
41,984.43x = 57,990.54 × 30,480.99 - Step 4: Simplify right side
41,984.43x = 1,767,609,069.83 - Step 5: Solve for x
x = 1,767,609,069.83/41,984.43 - Step 6: Final answer
x = 42,101.54
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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.