Finding the Fourth Proportional to 71,629.14, 107,443.58 and 19,038.62
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Solution
The fourth proportional to 71,629.14, 107,443.58 and 19,038.62 is: 28,557.90
Step by Step Solution
- Step 1: Write the proportion equation
71,629.14 : 107,443.58 = 19,038.62 : x - Step 2: Convert to fraction form
71,629.14/107,443.58 = 19,038.62/x - Step 3: Cross multiply
71,629.14x = 107,443.58 × 19,038.62 - Step 4: Simplify right side
71,629.14x = 2,045,577,491.06 - Step 5: Solve for x
x = 2,045,577,491.06/71,629.14 - Step 6: Final answer
x = 28,557.90
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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.