Finding the Fourth Proportional to 87,009.92, 130,524.36 and 27,831.68
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Solution
The fourth proportional to 87,009.92, 130,524.36 and 27,831.68 is: 41,750.55
Step by Step Solution
- Step 1: Write the proportion equation
87,009.92 : 130,524.36 = 27,831.68 : x - Step 2: Convert to fraction form
87,009.92/130,524.36 = 27,831.68/x - Step 3: Cross multiply
87,009.92x = 130,524.36 × 27,831.68 - Step 4: Simplify right side
87,009.92x = 3,632,712,219.72 - Step 5: Solve for x
x = 3,632,712,219.72/87,009.92 - Step 6: Final answer
x = 41,750.55
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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.