Finding the Fourth Proportional to 83,973.13, 125,912.28 and 31,361.20
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Solution
The fourth proportional to 83,973.13, 125,912.28 and 31,361.20 is: 47,024.09
Step by Step Solution
- Step 1: Write the proportion equation
83,973.13 : 125,912.28 = 31,361.20 : x - Step 2: Convert to fraction form
83,973.13/125,912.28 = 31,361.20/x - Step 3: Cross multiply
83,973.13x = 125,912.28 × 31,361.20 - Step 4: Simplify right side
83,973.13x = 3,948,760,195.54 - Step 5: Solve for x
x = 3,948,760,195.54/83,973.13 - Step 6: Final answer
x = 47,024.09
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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.