Finding the Fourth Proportional to 110,642.97, 165,960.14 and 31,757.18
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Solution
The fourth proportional to 110,642.97, 165,960.14 and 31,757.18 is: 47,634.52
Step by Step Solution
- Step 1: Write the proportion equation
110,642.97 : 165,960.14 = 31,757.18 : x - Step 2: Convert to fraction form
110,642.97/165,960.14 = 31,757.18/x - Step 3: Cross multiply
110,642.97x = 165,960.14 × 31,757.18 - Step 4: Simplify right side
110,642.97x = 5,270,425,050.22 - Step 5: Solve for x
x = 5,270,425,050.22/110,642.97 - Step 6: Final answer
x = 47,634.52
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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.