Finding the Fourth Proportional to 86,950.94, 119,992.12 and 49,228.70
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Solution
The fourth proportional to 86,950.94, 119,992.12 and 49,228.70 is: 67,935.50
Step by Step Solution
- Step 1: Write the proportion equation
86,950.94 : 119,992.12 = 49,228.70 : x - Step 2: Convert to fraction form
86,950.94/119,992.12 = 49,228.70/x - Step 3: Cross multiply
86,950.94x = 119,992.12 × 49,228.70 - Step 4: Simplify right side
86,950.94x = 5,907,055,354.81 - Step 5: Solve for x
x = 5,907,055,354.81/86,950.94 - Step 6: Final answer
x = 67,935.50
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1.5x scale
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.