Finding the Fourth Proportional to 71,455.97, 107,182.14 and 18,865.91
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Solution
The fourth proportional to 71,455.97, 107,182.14 and 18,865.91 is: 28,298.39
Step by Step Solution
- Step 1: Write the proportion equation
71,455.97 : 107,182.14 = 18,865.91 : x - Step 2: Convert to fraction form
71,455.97/107,182.14 = 18,865.91/x - Step 3: Cross multiply
71,455.97x = 107,182.14 × 18,865.91 - Step 4: Simplify right side
71,455.97x = 2,022,088,804.06 - Step 5: Solve for x
x = 2,022,088,804.06/71,455.97 - Step 6: Final answer
x = 28,298.39
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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.