Finding the Fourth Proportional to 83,450.20, 124,430.93 and 74,177.32
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Solution
The fourth proportional to 83,450.20, 124,430.93 and 74,177.32 is: 110,604.32
Step by Step Solution
- Step 1: Write the proportion equation
83,450.20 : 124,430.93 = 74,177.32 : x - Step 2: Convert to fraction form
83,450.20/124,430.93 = 74,177.32/x - Step 3: Cross multiply
83,450.20x = 124,430.93 × 74,177.32 - Step 4: Simplify right side
83,450.20x = 9,229,952,912.51 - Step 5: Solve for x
x = 9,229,952,912.51/83,450.20 - Step 6: Final answer
x = 110,604.32
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.