Finding the Fourth Proportional to 75,515.38, 113,278.07 and 22,212.12
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Solution
The fourth proportional to 75,515.38, 113,278.07 and 22,212.12 is: 33,319.65
Step by Step Solution
- Step 1: Write the proportion equation
75,515.38 : 113,278.07 = 22,212.12 : x - Step 2: Convert to fraction form
75,515.38/113,278.07 = 22,212.12/x - Step 3: Cross multiply
75,515.38x = 113,278.07 × 22,212.12 - Step 4: Simplify right side
75,515.38x = 2,516,146,256.34 - Step 5: Solve for x
x = 2,516,146,256.34/75,515.38 - Step 6: Final answer
x = 33,319.65
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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.