Finding the Fourth Proportional to 79,120.13, 118,709.35 and 41,678.69
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Solution
The fourth proportional to 79,120.13, 118,709.35 and 41,678.69 is: 62,533.39
Step by Step Solution
- Step 1: Write the proportion equation
79,120.13 : 118,709.35 = 41,678.69 : x - Step 2: Convert to fraction form
79,120.13/118,709.35 = 41,678.69/x - Step 3: Cross multiply
79,120.13x = 118,709.35 × 41,678.69 - Step 4: Simplify right side
79,120.13x = 4,947,649,501.01 - Step 5: Solve for x
x = 4,947,649,501.01/79,120.13 - Step 6: Final answer
x = 62,533.39
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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.