Finding the Fourth Proportional to 90,392.36, 124,739.19 and 50,105.99
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Solution
The fourth proportional to 90,392.36, 124,739.19 and 50,105.99 is: 69,145.02
Step by Step Solution
- Step 1: Write the proportion equation
90,392.36 : 124,739.19 = 50,105.99 : x - Step 2: Convert to fraction form
90,392.36/124,739.19 = 50,105.99/x - Step 3: Cross multiply
90,392.36x = 124,739.19 × 50,105.99 - Step 4: Simplify right side
90,392.36x = 6,250,180,918.60 - Step 5: Solve for x
x = 6,250,180,918.60/90,392.36 - Step 6: Final answer
x = 69,145.02
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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.