Finding the Fourth Proportional to 71,020.20, 106,530.30 and 69,853.80
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Solution
The fourth proportional to 71,020.20, 106,530.30 and 69,853.80 is: 104,780.70
Step by Step Solution
- Step 1: Write the proportion equation
71,020.20 : 106,530.30 = 69,853.80 : x - Step 2: Convert to fraction form
71,020.20/106,530.30 = 69,853.80/x - Step 3: Cross multiply
71,020.20x = 106,530.30 × 69,853.80 - Step 4: Simplify right side
71,020.20x = 7,441,546,270.14 - Step 5: Solve for x
x = 7,441,546,270.14/71,020.20 - Step 6: Final answer
x = 104,780.70
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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.