Finding the Fourth Proportional to 80,977.81, 121,466.71 and 41,509.75
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Solution
The fourth proportional to 80,977.81, 121,466.71 and 41,509.75 is: 62,264.62
Step by Step Solution
- Step 1: Write the proportion equation
80,977.81 : 121,466.71 = 41,509.75 : x - Step 2: Convert to fraction form
80,977.81/121,466.71 = 41,509.75/x - Step 3: Cross multiply
80,977.81x = 121,466.71 × 41,509.75 - Step 4: Simplify right side
80,977.81x = 5,042,052,765.42 - Step 5: Solve for x
x = 5,042,052,765.42/80,977.81 - Step 6: Final answer
x = 62,264.62
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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.