Finding the Fourth Proportional to 71,013.21, 106,438.88 and 44,371.50
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Solution
The fourth proportional to 71,013.21, 106,438.88 and 44,371.50 is: 66,506.68
Step by Step Solution
- Step 1: Write the proportion equation
71,013.21 : 106,438.88 = 44,371.50 : x - Step 2: Convert to fraction form
71,013.21/106,438.88 = 44,371.50/x - Step 3: Cross multiply
71,013.21x = 106,438.88 × 44,371.50 - Step 4: Simplify right side
71,013.21x = 4,722,852,763.92 - Step 5: Solve for x
x = 4,722,852,763.92/71,013.21 - Step 6: Final answer
x = 66,506.68
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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.