Finding the Fourth Proportional to 75,497.56, 113,243.11 and 19,339.18
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Solution
The fourth proportional to 75,497.56, 113,243.11 and 19,339.18 is: 29,007.94
Step by Step Solution
- Step 1: Write the proportion equation
75,497.56 : 113,243.11 = 19,339.18 : x - Step 2: Convert to fraction form
75,497.56/113,243.11 = 19,339.18/x - Step 3: Cross multiply
75,497.56x = 113,243.11 × 19,339.18 - Step 4: Simplify right side
75,497.56x = 2,190,028,888.05 - Step 5: Solve for x
x = 2,190,028,888.05/75,497.56 - Step 6: Final answer
x = 29,007.94
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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.