Finding the Fourth Proportional to 87,850.91, 121,234.07 and 47,564.70
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Solution
The fourth proportional to 87,850.91, 121,234.07 and 47,564.70 is: 65,639.19
Step by Step Solution
- Step 1: Write the proportion equation
87,850.91 : 121,234.07 = 47,564.70 : x - Step 2: Convert to fraction form
87,850.91/121,234.07 = 47,564.70/x - Step 3: Cross multiply
87,850.91x = 121,234.07 × 47,564.70 - Step 4: Simplify right side
87,850.91x = 5,766,462,288.24 - Step 5: Solve for x
x = 5,766,462,288.24/87,850.91 - Step 6: Final answer
x = 65,639.19
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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.