Finding the Fourth Proportional to 87,730.98, 120,926.56 and 68,576.91
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Solution
The fourth proportional to 87,730.98, 120,926.56 and 68,576.91 is: 94,524.99
Step by Step Solution
- Step 1: Write the proportion equation
87,730.98 : 120,926.56 = 68,576.91 : x - Step 2: Convert to fraction form
87,730.98/120,926.56 = 68,576.91/x - Step 3: Cross multiply
87,730.98x = 120,926.56 × 68,576.91 - Step 4: Simplify right side
87,730.98x = 8,292,769,821.73 - Step 5: Solve for x
x = 8,292,769,821.73/87,730.98 - Step 6: Final answer
x = 94,524.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.