Home / 72,831.20-109,250.40-37,839.20

Finding the Fourth Proportional to 72,831.20, 109,250.40 and 37,839.20

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Solution

The fourth proportional to 72,831.20, 109,250.40 and 37,839.20 is: 56,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,831.20 : 109,250.40 = 37,839.20 : x
  2. Step 2: Convert to fraction form
    72,831.20/109,250.40 = 37,839.20/x
  3. Step 3: Cross multiply
    72,831.20x = 109,250.40 × 37,839.20
  4. Step 4: Simplify right side
    72,831.20x = 4,133,947,735.68
  5. Step 5: Solve for x
    x = 4,133,947,735.68/72,831.20
  6. Step 6: Final answer
    x = 56,760.67

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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.