Home / 66,811.66-100,225.73-21,831.95

Finding the Fourth Proportional to 66,811.66, 100,225.73 and 21,831.95

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Solution

The fourth proportional to 66,811.66, 100,225.73 and 21,831.95 is: 32,750.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,811.66 : 100,225.73 = 21,831.95 : x
  2. Step 2: Convert to fraction form
    66,811.66/100,225.73 = 21,831.95/x
  3. Step 3: Cross multiply
    66,811.66x = 100,225.73 × 21,831.95
  4. Step 4: Simplify right side
    66,811.66x = 2,188,123,431.22
  5. Step 5: Solve for x
    x = 2,188,123,431.22/66,811.66
  6. Step 6: Final answer
    x = 32,750.62

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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.