Home / 57,440.72-86,161.20-15,887.84

Finding the Fourth Proportional to 57,440.72, 86,161.20 and 15,887.84

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Solution

The fourth proportional to 57,440.72, 86,161.20 and 15,887.84 is: 23,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,440.72 : 86,161.20 = 15,887.84 : x
  2. Step 2: Convert to fraction form
    57,440.72/86,161.20 = 15,887.84/x
  3. Step 3: Cross multiply
    57,440.72x = 86,161.20 × 15,887.84
  4. Step 4: Simplify right side
    57,440.72x = 1,368,915,359.81
  5. Step 5: Solve for x
    x = 1,368,915,359.81/57,440.72
  6. Step 6: Final answer
    x = 23,831.79

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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.