Finding the Fourth Proportional to 87,836.06, 121,213.62 and 47,549.81
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Solution
The fourth proportional to 87,836.06, 121,213.62 and 47,549.81 is: 65,618.66
Step by Step Solution
- Step 1: Write the proportion equation
87,836.06 : 121,213.62 = 47,549.81 : x - Step 2: Convert to fraction form
87,836.06/121,213.62 = 47,549.81/x - Step 3: Cross multiply
87,836.06x = 121,213.62 × 47,549.81 - Step 4: Simplify right side
87,836.06x = 5,763,684,600.41 - Step 5: Solve for x
x = 5,763,684,600.41/87,836.06 - Step 6: Final answer
x = 65,618.66
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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.