Finding the Fourth Proportional to 80,803.80, 121,224.84 and 40,724.28
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Solution
The fourth proportional to 80,803.80, 121,224.84 and 40,724.28 is: 61,096.07
Step by Step Solution
- Step 1: Write the proportion equation
80,803.80 : 121,224.84 = 40,724.28 : x - Step 2: Convert to fraction form
80,803.80/121,224.84 = 40,724.28/x - Step 3: Cross multiply
80,803.80x = 121,224.84 × 40,724.28 - Step 4: Simplify right side
80,803.80x = 4,936,794,327.12 - Step 5: Solve for x
x = 4,936,794,327.12/80,803.80 - Step 6: Final answer
x = 61,096.07
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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.