Finding the Fourth Proportional to 76,033.62, 104,922.12 and 42,040.08
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Solution
The fourth proportional to 76,033.62, 104,922.12 and 42,040.08 is: 58,012.95
Step by Step Solution
- Step 1: Write the proportion equation
76,033.62 : 104,922.12 = 42,040.08 : x - Step 2: Convert to fraction form
76,033.62/104,922.12 = 42,040.08/x - Step 3: Cross multiply
76,033.62x = 104,922.12 × 42,040.08 - Step 4: Simplify right side
76,033.62x = 4,410,934,318.57 - Step 5: Solve for x
x = 4,410,934,318.57/76,033.62 - Step 6: Final answer
x = 58,012.95
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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.