Finding the Fourth Proportional to 71,204.60, 106,893.30 and 39,639.80
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Solution
The fourth proportional to 71,204.60, 106,893.30 and 39,639.80 is: 59,507.80
Step by Step Solution
- Step 1: Write the proportion equation
71,204.60 : 106,893.30 = 39,639.80 : x - Step 2: Convert to fraction form
71,204.60/106,893.30 = 39,639.80/x - Step 3: Cross multiply
71,204.60x = 106,893.30 × 39,639.80 - Step 4: Simplify right side
71,204.60x = 4,237,229,033.34 - Step 5: Solve for x
x = 4,237,229,033.34/71,204.60 - Step 6: Final answer
x = 59,507.80
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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.