Finding the Fourth Proportional to 84,102.76, 126,141.96 and 27,169.06
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Solution
The fourth proportional to 84,102.76, 126,141.96 and 27,169.06 is: 40,749.66
Step by Step Solution
- Step 1: Write the proportion equation
84,102.76 : 126,141.96 = 27,169.06 : x - Step 2: Convert to fraction form
84,102.76/126,141.96 = 27,169.06/x - Step 3: Cross multiply
84,102.76x = 126,141.96 × 27,169.06 - Step 4: Simplify right side
84,102.76x = 3,427,158,479.76 - Step 5: Solve for x
x = 3,427,158,479.76/84,102.76 - Step 6: Final answer
x = 40,749.66
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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.