Finding the Fourth Proportional to 86,267.76, 129,358.44 and 27,102.66
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Solution
The fourth proportional to 86,267.76, 129,358.44 and 27,102.66 is: 40,640.42
Step by Step Solution
- Step 1: Write the proportion equation
86,267.76 : 129,358.44 = 27,102.66 : x - Step 2: Convert to fraction form
86,267.76/129,358.44 = 27,102.66/x - Step 3: Cross multiply
86,267.76x = 129,358.44 × 27,102.66 - Step 4: Simplify right side
86,267.76x = 3,505,957,817.45 - Step 5: Solve for x
x = 3,505,957,817.45/86,267.76 - Step 6: Final answer
x = 40,640.42
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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.