Finding the Fourth Proportional to 68,232.78, 102,359.97 and 20,206.26
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Solution
The fourth proportional to 68,232.78, 102,359.97 and 20,206.26 is: 30,312.59
Step by Step Solution
- Step 1: Write the proportion equation
68,232.78 : 102,359.97 = 20,206.26 : x - Step 2: Convert to fraction form
68,232.78/102,359.97 = 20,206.26/x - Step 3: Cross multiply
68,232.78x = 102,359.97 × 20,206.26 - Step 4: Simplify right side
68,232.78x = 2,068,312,167.41 - Step 5: Solve for x
x = 2,068,312,167.41/68,232.78 - Step 6: Final answer
x = 30,312.59
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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.