Finding the Fourth Proportional to 68,028.23, 102,019.66 and 28,577.99
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Solution
The fourth proportional to 68,028.23, 102,019.66 and 28,577.99 is: 42,857.46
Step by Step Solution
- Step 1: Write the proportion equation
68,028.23 : 102,019.66 = 28,577.99 : x - Step 2: Convert to fraction form
68,028.23/102,019.66 = 28,577.99/x - Step 3: Cross multiply
68,028.23x = 102,019.66 × 28,577.99 - Step 4: Simplify right side
68,028.23x = 2,915,516,823.28 - Step 5: Solve for x
x = 2,915,516,823.28/68,028.23 - Step 6: Final answer
x = 42,857.46
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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.