Finding the Fourth Proportional to 91,378.62, 137,038.77 and 29,034.54
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Solution
The fourth proportional to 91,378.62, 137,038.77 and 29,034.54 is: 43,542.54
Step by Step Solution
- Step 1: Write the proportion equation
91,378.62 : 137,038.77 = 29,034.54 : x - Step 2: Convert to fraction form
91,378.62/137,038.77 = 29,034.54/x - Step 3: Cross multiply
91,378.62x = 137,038.77 × 29,034.54 - Step 4: Simplify right side
91,378.62x = 3,978,857,649.12 - Step 5: Solve for x
x = 3,978,857,649.12/91,378.62 - Step 6: Final answer
x = 43,542.54
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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.