Finding the Fourth Proportional to 87,869.44, 121,260.14 and 47,583.08
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Solution
The fourth proportional to 87,869.44, 121,260.14 and 47,583.08 is: 65,664.82
Step by Step Solution
- Step 1: Write the proportion equation
87,869.44 : 121,260.14 = 47,583.08 : x - Step 2: Convert to fraction form
87,869.44/121,260.14 = 47,583.08/x - Step 3: Cross multiply
87,869.44x = 121,260.14 × 47,583.08 - Step 4: Simplify right side
87,869.44x = 5,769,930,731.38 - Step 5: Solve for x
x = 5,769,930,731.38/87,869.44 - Step 6: Final answer
x = 65,664.82
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1.5x scale
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.