Home / 80,984.40-111,757.18-45,173.50

Finding the Fourth Proportional to 80,984.40, 111,757.18 and 45,173.50

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Solution

The fourth proportional to 80,984.40, 111,757.18 and 45,173.50 is: 62,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,984.40 : 111,757.18 = 45,173.50 : x
  2. Step 2: Convert to fraction form
    80,984.40/111,757.18 = 45,173.50/x
  3. Step 3: Cross multiply
    80,984.40x = 111,757.18 × 45,173.50
  4. Step 4: Simplify right side
    80,984.40x = 5,048,462,970.73
  5. Step 5: Solve for x
    x = 5,048,462,970.73/80,984.40
  6. Step 6: Final answer
    x = 62,338.71

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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.