Finding the Fourth Proportional to 90,198.09, 124,486.56 and 51,950.28
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Solution
The fourth proportional to 90,198.09, 124,486.56 and 51,950.28 is: 71,698.99
Step by Step Solution
- Step 1: Write the proportion equation
90,198.09 : 124,486.56 = 51,950.28 : x - Step 2: Convert to fraction form
90,198.09/124,486.56 = 51,950.28/x - Step 3: Cross multiply
90,198.09x = 124,486.56 × 51,950.28 - Step 4: Simplify right side
90,198.09x = 6,467,111,648.24 - Step 5: Solve for x
x = 6,467,111,648.24/90,198.09 - Step 6: Final answer
x = 71,698.99
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1.5x scale
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.