Home / 40,831.76-61,198.44-21,099.68

Finding the Fourth Proportional to 40,831.76, 61,198.44 and 21,099.68

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Solution

The fourth proportional to 40,831.76, 61,198.44 and 21,099.68 is: 31,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,831.76 : 61,198.44 = 21,099.68 : x
  2. Step 2: Convert to fraction form
    40,831.76/61,198.44 = 21,099.68/x
  3. Step 3: Cross multiply
    40,831.76x = 61,198.44 × 21,099.68
  4. Step 4: Simplify right side
    40,831.76x = 1,291,267,500.50
  5. Step 5: Solve for x
    x = 1,291,267,500.50/40,831.76
  6. Step 6: Final answer
    x = 31,624.10

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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.