Home / 80,940.33-111,698.25-45,132.66

Finding the Fourth Proportional to 80,940.33, 111,698.25 and 45,132.66

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Solution

The fourth proportional to 80,940.33, 111,698.25 and 45,132.66 is: 62,283.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,940.33 : 111,698.25 = 45,132.66 : x
  2. Step 2: Convert to fraction form
    80,940.33/111,698.25 = 45,132.66/x
  3. Step 3: Cross multiply
    80,940.33x = 111,698.25 × 45,132.66
  4. Step 4: Simplify right side
    80,940.33x = 5,041,239,139.85
  5. Step 5: Solve for x
    x = 5,041,239,139.85/80,940.33
  6. Step 6: Final answer
    x = 62,283.40

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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.