Finding the Fourth Proportional to 90,195.15, 135,291.77 and 27,866.19
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Solution
The fourth proportional to 90,195.15, 135,291.77 and 27,866.19 is: 41,798.99
Step by Step Solution
- Step 1: Write the proportion equation
90,195.15 : 135,291.77 = 27,866.19 : x - Step 2: Convert to fraction form
90,195.15/135,291.77 = 27,866.19/x - Step 3: Cross multiply
90,195.15x = 135,291.77 × 27,866.19 - Step 4: Simplify right side
90,195.15x = 3,770,066,028.93 - Step 5: Solve for x
x = 3,770,066,028.93/90,195.15 - Step 6: Final answer
x = 41,798.99
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1.5x scale
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.