Finding the Fourth Proportional to 94,139.07, 129,912.81 and 51,698.52
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Solution
The fourth proportional to 94,139.07, 129,912.81 and 51,698.52 is: 71,344.45
Step by Step Solution
- Step 1: Write the proportion equation
94,139.07 : 129,912.81 = 51,698.52 : x - Step 2: Convert to fraction form
94,139.07/129,912.81 = 51,698.52/x - Step 3: Cross multiply
94,139.07x = 129,912.81 × 51,698.52 - Step 4: Simplify right side
94,139.07x = 6,716,300,006.04 - Step 5: Solve for x
x = 6,716,300,006.04/94,139.07 - Step 6: Final answer
x = 71,344.45
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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.