Finding the Fourth Proportional to 71,240.20, 106,860.30 and 29,681.80
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Solution
The fourth proportional to 71,240.20, 106,860.30 and 29,681.80 is: 44,522.70
Step by Step Solution
- Step 1: Write the proportion equation
71,240.20 : 106,860.30 = 29,681.80 : x - Step 2: Convert to fraction form
71,240.20/106,860.30 = 29,681.80/x - Step 3: Cross multiply
71,240.20x = 106,860.30 × 29,681.80 - Step 4: Simplify right side
71,240.20x = 3,171,806,052.54 - Step 5: Solve for x
x = 3,171,806,052.54/71,240.20 - Step 6: Final answer
x = 44,522.70
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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.