Finding the Fourth Proportional to 72,470.97, 108,693.77 and 19,163.45
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Solution
The fourth proportional to 72,470.97, 108,693.77 and 19,163.45 is: 28,741.82
Step by Step Solution
- Step 1: Write the proportion equation
72,470.97 : 108,693.77 = 19,163.45 : x - Step 2: Convert to fraction form
72,470.97/108,693.77 = 19,163.45/x - Step 3: Cross multiply
72,470.97x = 108,693.77 × 19,163.45 - Step 4: Simplify right side
72,470.97x = 2,082,947,802.62 - Step 5: Solve for x
x = 2,082,947,802.62/72,470.97 - Step 6: Final answer
x = 28,741.82
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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.