Finding the Fourth Proportional to 102,028.44, 140,812.38 and 57,325.08
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Solution
The fourth proportional to 102,028.44, 140,812.38 and 57,325.08 is: 79,115.99
Step by Step Solution
- Step 1: Write the proportion equation
102,028.44 : 140,812.38 = 57,325.08 : x - Step 2: Convert to fraction form
102,028.44/140,812.38 = 57,325.08/x - Step 3: Cross multiply
102,028.44x = 140,812.38 × 57,325.08 - Step 4: Simplify right side
102,028.44x = 8,072,080,948.49 - Step 5: Solve for x
x = 8,072,080,948.49/102,028.44 - Step 6: Final answer
x = 79,115.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.