Finding the Fourth Proportional to 71,726.80, 107,575.80 and 34,286.80
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Solution
The fourth proportional to 71,726.80, 107,575.80 and 34,286.80 is: 51,423.32
Step by Step Solution
- Step 1: Write the proportion equation
71,726.80 : 107,575.80 = 34,286.80 : x - Step 2: Convert to fraction form
71,726.80/107,575.80 = 34,286.80/x - Step 3: Cross multiply
71,726.80x = 107,575.80 × 34,286.80 - Step 4: Simplify right side
71,726.80x = 3,688,429,939.44 - Step 5: Solve for x
x = 3,688,429,939.44/71,726.80 - Step 6: Final answer
x = 51,423.32
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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.