Finding the Fourth Proportional to 68,217.76, 102,340.48 and 21,459.76
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Solution
The fourth proportional to 68,217.76, 102,340.48 and 21,459.76 is: 32,193.99
Step by Step Solution
- Step 1: Write the proportion equation
68,217.76 : 102,340.48 = 21,459.76 : x - Step 2: Convert to fraction form
68,217.76/102,340.48 = 21,459.76/x - Step 3: Cross multiply
68,217.76x = 102,340.48 × 21,459.76 - Step 4: Simplify right side
68,217.76x = 2,196,202,139.08 - Step 5: Solve for x
x = 2,196,202,139.08/68,217.76 - Step 6: Final answer
x = 32,193.99
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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.