Home / 83,940.45-125,831.52-41,780.67

Finding the Fourth Proportional to 83,940.45, 125,831.52 and 41,780.67

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Solution

The fourth proportional to 83,940.45, 125,831.52 and 41,780.67 is: 62,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,940.45 : 125,831.52 = 41,780.67 : x
  2. Step 2: Convert to fraction form
    83,940.45/125,831.52 = 41,780.67/x
  3. Step 3: Cross multiply
    83,940.45x = 125,831.52 × 41,780.67
  4. Step 4: Simplify right side
    83,940.45x = 5,257,324,740.85
  5. Step 5: Solve for x
    x = 5,257,324,740.85/83,940.45
  6. Step 6: Final answer
    x = 62,631.60

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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.