Finding the Fourth Proportional to 94,868.38, 130,918.36 and 57,149.92
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Solution
The fourth proportional to 94,868.38, 130,918.36 and 57,149.92 is: 78,866.88
Step by Step Solution
- Step 1: Write the proportion equation
94,868.38 : 130,918.36 = 57,149.92 : x - Step 2: Convert to fraction form
94,868.38/130,918.36 = 57,149.92/x - Step 3: Cross multiply
94,868.38x = 130,918.36 × 57,149.92 - Step 4: Simplify right side
94,868.38x = 7,481,973,145.94 - Step 5: Solve for x
x = 7,481,973,145.94/94,868.38 - Step 6: Final answer
x = 78,866.88
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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.