Finding the Fourth Proportional to 71,857.30, 107,777.73 and 19,262.68
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Solution
The fourth proportional to 71,857.30, 107,777.73 and 19,262.68 is: 28,891.82
Step by Step Solution
- Step 1: Write the proportion equation
71,857.30 : 107,777.73 = 19,262.68 : x - Step 2: Convert to fraction form
71,857.30/107,777.73 = 19,262.68/x - Step 3: Cross multiply
71,857.30x = 107,777.73 × 19,262.68 - Step 4: Simplify right side
71,857.30x = 2,076,087,924.12 - Step 5: Solve for x
x = 2,076,087,924.12/71,857.30 - Step 6: Final answer
x = 28,891.82
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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.