Home / 80,940.36-111,698.33-45,132.67

Finding the Fourth Proportional to 80,940.36, 111,698.33 and 45,132.67

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Solution

The fourth proportional to 80,940.36, 111,698.33 and 45,132.67 is: 62,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,940.36 : 111,698.33 = 45,132.67 : x
  2. Step 2: Convert to fraction form
    80,940.36/111,698.33 = 45,132.67/x
  3. Step 3: Cross multiply
    80,940.36x = 111,698.33 × 45,132.67
  4. Step 4: Simplify right side
    80,940.36x = 5,041,243,867.44
  5. Step 5: Solve for x
    x = 5,041,243,867.44/80,940.36
  6. Step 6: Final answer
    x = 62,283.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.