Finding the Fourth Proportional to 74,232.84, 111,340.36 and 20,928.84
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Solution
The fourth proportional to 74,232.84, 111,340.36 and 20,928.84 is: 31,390.75
Step by Step Solution
- Step 1: Write the proportion equation
74,232.84 : 111,340.36 = 20,928.84 : x - Step 2: Convert to fraction form
74,232.84/111,340.36 = 20,928.84/x - Step 3: Cross multiply
74,232.84x = 111,340.36 × 20,928.84 - Step 4: Simplify right side
74,232.84x = 2,330,224,579.98 - Step 5: Solve for x
x = 2,330,224,579.98/74,232.84 - Step 6: Final answer
x = 31,390.75
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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.