Finding the Fourth Proportional to 74,751.36, 112,126.68 and 71,013.84
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Solution
The fourth proportional to 74,751.36, 112,126.68 and 71,013.84 is: 106,520.42
Step by Step Solution
- Step 1: Write the proportion equation
74,751.36 : 112,126.68 = 71,013.84 : x - Step 2: Convert to fraction form
74,751.36/112,126.68 = 71,013.84/x - Step 3: Cross multiply
74,751.36x = 112,126.68 × 71,013.84 - Step 4: Simplify right side
74,751.36x = 7,962,546,113.25 - Step 5: Solve for x
x = 7,962,546,113.25/74,751.36 - Step 6: Final answer
x = 106,520.42
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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.