Finding the Fourth Proportional to 89,907.28, 134,844.20 and 29,936.68
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Solution
The fourth proportional to 89,907.28, 134,844.20 and 29,936.68 is: 44,899.45
Step by Step Solution
- Step 1: Write the proportion equation
89,907.28 : 134,844.20 = 29,936.68 : x - Step 2: Convert to fraction form
89,907.28/134,844.20 = 29,936.68/x - Step 3: Cross multiply
89,907.28x = 134,844.20 × 29,936.68 - Step 4: Simplify right side
89,907.28x = 4,036,787,665.26 - Step 5: Solve for x
x = 4,036,787,665.26/89,907.28 - Step 6: Final answer
x = 44,899.45
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1.5x scale
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.