Finding the Fourth Proportional to 80,950.37, 121,352.04 and 28,331.15
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Solution
The fourth proportional to 80,950.37, 121,352.04 and 28,331.15 is: 42,470.99
Step by Step Solution
- Step 1: Write the proportion equation
80,950.37 : 121,352.04 = 28,331.15 : x - Step 2: Convert to fraction form
80,950.37/121,352.04 = 28,331.15/x - Step 3: Cross multiply
80,950.37x = 121,352.04 × 28,331.15 - Step 4: Simplify right side
80,950.37x = 3,438,042,135.04 - Step 5: Solve for x
x = 3,438,042,135.04/80,950.37 - Step 6: Final answer
x = 42,470.99
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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.