Finding the Fourth Proportional to 71,251.98, 106,877.87 and 28,576.66
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Solution
The fourth proportional to 71,251.98, 106,877.87 and 28,576.66 is: 42,864.95
Step by Step Solution
- Step 1: Write the proportion equation
71,251.98 : 106,877.87 = 28,576.66 : x - Step 2: Convert to fraction form
71,251.98/106,877.87 = 28,576.66/x - Step 3: Cross multiply
71,251.98x = 106,877.87 × 28,576.66 - Step 4: Simplify right side
71,251.98x = 3,054,212,552.51 - Step 5: Solve for x
x = 3,054,212,552.51/71,251.98 - Step 6: Final answer
x = 42,864.95
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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.