Finding the Fourth Proportional to 75,254.14, 103,920.96 and 48,443.18
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Solution
The fourth proportional to 75,254.14, 103,920.96 and 48,443.18 is: 66,896.81
Step by Step Solution
- Step 1: Write the proportion equation
75,254.14 : 103,920.96 = 48,443.18 : x - Step 2: Convert to fraction form
75,254.14/103,920.96 = 48,443.18/x - Step 3: Cross multiply
75,254.14x = 103,920.96 × 48,443.18 - Step 4: Simplify right side
75,254.14x = 5,034,261,771.05 - Step 5: Solve for x
x = 5,034,261,771.05/75,254.14 - Step 6: Final answer
x = 66,896.81
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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.