Finding the Fourth Proportional to 71,611.26, 107,408.40 and 19,024.80
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Solution
The fourth proportional to 71,611.26, 107,408.40 and 19,024.80 is: 28,534.94
Step by Step Solution
- Step 1: Write the proportion equation
71,611.26 : 107,408.40 = 19,024.80 : x - Step 2: Convert to fraction form
71,611.26/107,408.40 = 19,024.80/x - Step 3: Cross multiply
71,611.26x = 107,408.40 × 19,024.80 - Step 4: Simplify right side
71,611.26x = 2,043,423,328.32 - Step 5: Solve for x
x = 2,043,423,328.32/71,611.26 - Step 6: Final answer
x = 28,534.94
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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.