Finding the Fourth Proportional to 110,391.36, 165,537.88 and 31,487.12
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Solution
The fourth proportional to 110,391.36, 165,537.88 and 31,487.12 is: 47,216.66
Step by Step Solution
- Step 1: Write the proportion equation
110,391.36 : 165,537.88 = 31,487.12 : x - Step 2: Convert to fraction form
110,391.36/165,537.88 = 31,487.12/x - Step 3: Cross multiply
110,391.36x = 165,537.88 × 31,487.12 - Step 4: Simplify right side
110,391.36x = 5,212,311,092.11 - Step 5: Solve for x
x = 5,212,311,092.11/110,391.36 - Step 6: Final answer
x = 47,216.66
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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.