Finding the Fourth Proportional to 89,074.53, 122,938.70 and 53,268.48
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Solution
The fourth proportional to 89,074.53, 122,938.70 and 53,268.48 is: 73,519.98
Step by Step Solution
- Step 1: Write the proportion equation
89,074.53 : 122,938.70 = 53,268.48 : x - Step 2: Convert to fraction form
89,074.53/122,938.70 = 53,268.48/x - Step 3: Cross multiply
89,074.53x = 122,938.70 × 53,268.48 - Step 4: Simplify right side
89,074.53x = 6,548,757,415.83 - Step 5: Solve for x
x = 6,548,757,415.83/89,074.53 - Step 6: Final answer
x = 73,519.98
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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.