Finding the Fourth Proportional to 87,764.48, 121,097.08 and 51,936.56
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Solution
The fourth proportional to 87,764.48, 121,097.08 and 51,936.56 is: 71,661.86
Step by Step Solution
- Step 1: Write the proportion equation
87,764.48 : 121,097.08 = 51,936.56 : x - Step 2: Convert to fraction form
87,764.48/121,097.08 = 51,936.56/x - Step 3: Cross multiply
87,764.48x = 121,097.08 × 51,936.56 - Step 4: Simplify right side
87,764.48x = 6,289,365,761.24 - Step 5: Solve for x
x = 6,289,365,761.24/87,764.48 - Step 6: Final answer
x = 71,661.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.