Finding the Fourth Proportional to 67,515.99, 101,284.97 and 20,768.91
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Solution
The fourth proportional to 67,515.99, 101,284.97 and 20,768.91 is: 31,156.74
Step by Step Solution
- Step 1: Write the proportion equation
67,515.99 : 101,284.97 = 20,768.91 : x - Step 2: Convert to fraction form
67,515.99/101,284.97 = 20,768.91/x - Step 3: Cross multiply
67,515.99x = 101,284.97 × 20,768.91 - Step 4: Simplify right side
67,515.99x = 2,103,578,322.44 - Step 5: Solve for x
x = 2,103,578,322.44/67,515.99 - Step 6: Final answer
x = 31,156.74
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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.