Finding the Fourth Proportional to 89,074.13, 122,918.69 and 53,283.92
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Solution
The fourth proportional to 89,074.13, 122,918.69 and 53,283.92 is: 73,529.65
Step by Step Solution
- Step 1: Write the proportion equation
89,074.13 : 122,918.69 = 53,283.92 : x - Step 2: Convert to fraction form
89,074.13/122,918.69 = 53,283.92/x - Step 3: Cross multiply
89,074.13x = 122,918.69 × 53,283.92 - Step 4: Simplify right side
89,074.13x = 6,549,589,163.08 - Step 5: Solve for x
x = 6,549,589,163.08/89,074.13 - Step 6: Final answer
x = 73,529.65
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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.