Finding the Fourth Proportional to 115,768.80, 173,656.24 and 31,529.68
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Solution
The fourth proportional to 115,768.80, 173,656.24 and 31,529.68 is: 47,295.34
Step by Step Solution
- Step 1: Write the proportion equation
115,768.80 : 173,656.24 = 31,529.68 : x - Step 2: Convert to fraction form
115,768.80/173,656.24 = 31,529.68/x - Step 3: Cross multiply
115,768.80x = 173,656.24 × 31,529.68 - Step 4: Simplify right side
115,768.80x = 5,475,325,164.24 - Step 5: Solve for x
x = 5,475,325,164.24/115,768.80 - Step 6: Final answer
x = 47,295.34
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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.