Finding the Fourth Proportional to 129,775.24, 194,661.64 and 41,028.74
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Solution
The fourth proportional to 129,775.24, 194,661.64 and 41,028.74 is: 61,542.72
Step by Step Solution
- Step 1: Write the proportion equation
129,775.24 : 194,661.64 = 41,028.74 : x - Step 2: Convert to fraction form
129,775.24/194,661.64 = 41,028.74/x - Step 3: Cross multiply
129,775.24x = 194,661.64 × 41,028.74 - Step 4: Simplify right side
129,775.24x = 7,986,721,712.96 - Step 5: Solve for x
x = 7,986,721,712.96/129,775.24 - Step 6: Final answer
x = 61,542.72
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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.