Finding the Fourth Proportional to 90,738.47, 136,107.92 and 27,559.08
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Solution
The fourth proportional to 90,738.47, 136,107.92 and 27,559.08 is: 41,338.68
Step by Step Solution
- Step 1: Write the proportion equation
90,738.47 : 136,107.92 = 27,559.08 : x - Step 2: Convert to fraction form
90,738.47/136,107.92 = 27,559.08/x - Step 3: Cross multiply
90,738.47x = 136,107.92 × 27,559.08 - Step 4: Simplify right side
90,738.47x = 3,751,009,124.81 - Step 5: Solve for x
x = 3,751,009,124.81/90,738.47 - Step 6: Final answer
x = 41,338.68
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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.