Finding the Fourth Proportional to 87,869.85, 121,260.74 and 47,583.63
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Solution
The fourth proportional to 87,869.85, 121,260.74 and 47,583.63 is: 65,665.59
Step by Step Solution
- Step 1: Write the proportion equation
87,869.85 : 121,260.74 = 47,583.63 : x - Step 2: Convert to fraction form
87,869.85/121,260.74 = 47,583.63/x - Step 3: Cross multiply
87,869.85x = 121,260.74 × 47,583.63 - Step 4: Simplify right side
87,869.85x = 5,770,025,947.77 - Step 5: Solve for x
x = 5,770,025,947.77/87,869.85 - Step 6: Final answer
x = 65,665.59
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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.