Finding the Fourth Proportional to 71,289.73, 106,885.99 and 36,161.65
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Solution
The fourth proportional to 71,289.73, 106,885.99 and 36,161.65 is: 54,217.82
Step by Step Solution
- Step 1: Write the proportion equation
71,289.73 : 106,885.99 = 36,161.65 : x - Step 2: Convert to fraction form
71,289.73/106,885.99 = 36,161.65/x - Step 3: Cross multiply
71,289.73x = 106,885.99 × 36,161.65 - Step 4: Simplify right side
71,289.73x = 3,865,173,760.28 - Step 5: Solve for x
x = 3,865,173,760.28/71,289.73 - Step 6: Final answer
x = 54,217.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.