Home / 80,843-111,566.79-45,033.03

Finding the Fourth Proportional to 80,843, 111,566.79 and 45,033.03

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Solution

The fourth proportional to 80,843, 111,566.79 and 45,033.03 is: 62,147.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,843 : 111,566.79 = 45,033.03 : x
  2. Step 2: Convert to fraction form
    80,843/111,566.79 = 45,033.03/x
  3. Step 3: Cross multiply
    80,843x = 111,566.79 × 45,033.03
  4. Step 4: Simplify right side
    80,843x = 5,024,190,601.07
  5. Step 5: Solve for x
    x = 5,024,190,601.07/80,843
  6. Step 6: Final answer
    x = 62,147.50

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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.