Finding the Fourth Proportional to 71,937.63, 107,906.45 and 30,384.99
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Solution
The fourth proportional to 71,937.63, 107,906.45 and 30,384.99 is: 45,577.49
Step by Step Solution
- Step 1: Write the proportion equation
71,937.63 : 107,906.45 = 30,384.99 : x - Step 2: Convert to fraction form
71,937.63/107,906.45 = 30,384.99/x - Step 3: Cross multiply
71,937.63x = 107,906.45 × 30,384.99 - Step 4: Simplify right side
71,937.63x = 3,278,736,252.26 - Step 5: Solve for x
x = 3,278,736,252.26/71,937.63 - Step 6: Final answer
x = 45,577.49
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1.5x scale
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.