Finding the Fourth Proportional to 71,263.20, 106,894.80 and 29,704.80
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Solution
The fourth proportional to 71,263.20, 106,894.80 and 29,704.80 is: 44,557.20
Step by Step Solution
- Step 1: Write the proportion equation
71,263.20 : 106,894.80 = 29,704.80 : x - Step 2: Convert to fraction form
71,263.20/106,894.80 = 29,704.80/x - Step 3: Cross multiply
71,263.20x = 106,894.80 × 29,704.80 - Step 4: Simplify right side
71,263.20x = 3,175,288,655.04 - Step 5: Solve for x
x = 3,175,288,655.04/71,263.20 - Step 6: Final answer
x = 44,557.20
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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.