Finding the Fourth Proportional to 74,238.68, 111,209.68 and 44,640.32
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Solution
The fourth proportional to 74,238.68, 111,209.68 and 44,640.32 is: 66,871.28
Step by Step Solution
- Step 1: Write the proportion equation
74,238.68 : 111,209.68 = 44,640.32 : x - Step 2: Convert to fraction form
74,238.68/111,209.68 = 44,640.32/x - Step 3: Cross multiply
74,238.68x = 111,209.68 × 44,640.32 - Step 4: Simplify right side
74,238.68x = 4,964,435,702.30 - Step 5: Solve for x
x = 4,964,435,702.30/74,238.68 - Step 6: Final answer
x = 66,871.28
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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.