Finding the Fourth Proportional to 81,831.68, 122,518.97 and 44,257.13
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Solution
The fourth proportional to 81,831.68, 122,518.97 and 44,257.13 is: 66,262.09
Step by Step Solution
- Step 1: Write the proportion equation
81,831.68 : 122,518.97 = 44,257.13 : x - Step 2: Convert to fraction form
81,831.68/122,518.97 = 44,257.13/x - Step 3: Cross multiply
81,831.68x = 122,518.97 × 44,257.13 - Step 4: Simplify right side
81,831.68x = 5,422,337,982.76 - Step 5: Solve for x
x = 5,422,337,982.76/81,831.68 - Step 6: Final answer
x = 66,262.09
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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.