Finding the Fourth Proportional to 87,680.63, 121,011.11 and 49,448.02
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Solution
The fourth proportional to 87,680.63, 121,011.11 and 49,448.02 is: 68,244.95
Step by Step Solution
- Step 1: Write the proportion equation
87,680.63 : 121,011.11 = 49,448.02 : x - Step 2: Convert to fraction form
87,680.63/121,011.11 = 49,448.02/x - Step 3: Cross multiply
87,680.63x = 121,011.11 × 49,448.02 - Step 4: Simplify right side
87,680.63x = 5,983,759,787.50 - Step 5: Solve for x
x = 5,983,759,787.50/87,680.63 - Step 6: Final answer
x = 68,244.95
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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.