Finding the Fourth Proportional to 77,183.16, 115,708.19 and 29,831.48
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Solution
The fourth proportional to 77,183.16, 115,708.19 and 29,831.48 is: 44,721.49
Step by Step Solution
- Step 1: Write the proportion equation
77,183.16 : 115,708.19 = 29,831.48 : x - Step 2: Convert to fraction form
77,183.16/115,708.19 = 29,831.48/x - Step 3: Cross multiply
77,183.16x = 115,708.19 × 29,831.48 - Step 4: Simplify right side
77,183.16x = 3,451,745,828.12 - Step 5: Solve for x
x = 3,451,745,828.12/77,183.16 - Step 6: Final answer
x = 44,721.49
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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.