Finding the Fourth Proportional to 68,250.96, 102,340.80 and 21,491.28
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Solution
The fourth proportional to 68,250.96, 102,340.80 and 21,491.28 is: 32,225.70
Step by Step Solution
- Step 1: Write the proportion equation
68,250.96 : 102,340.80 = 21,491.28 : x - Step 2: Convert to fraction form
68,250.96/102,340.80 = 21,491.28/x - Step 3: Cross multiply
68,250.96x = 102,340.80 × 21,491.28 - Step 4: Simplify right side
68,250.96x = 2,199,434,788.22 - Step 5: Solve for x
x = 2,199,434,788.22/68,250.96 - Step 6: Final answer
x = 32,225.70
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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.