Finding the Fourth Proportional to 115,866.05, 173,767.68 and 40,976.28
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Solution
The fourth proportional to 115,866.05, 173,767.68 and 40,976.28 is: 61,453.32
Step by Step Solution
- Step 1: Write the proportion equation
115,866.05 : 173,767.68 = 40,976.28 : x - Step 2: Convert to fraction form
115,866.05/173,767.68 = 40,976.28/x - Step 3: Cross multiply
115,866.05x = 173,767.68 × 40,976.28 - Step 4: Simplify right side
115,866.05x = 7,120,353,110.63 - Step 5: Solve for x
x = 7,120,353,110.63/115,866.05 - Step 6: Final answer
x = 61,453.32
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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.