Home / 74,648.11-111,861.41-54,829.79

Finding the Fourth Proportional to 74,648.11, 111,861.41 and 54,829.79

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Solution

The fourth proportional to 74,648.11, 111,861.41 and 54,829.79 is: 82,163.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,648.11 : 111,861.41 = 54,829.79 : x
  2. Step 2: Convert to fraction form
    74,648.11/111,861.41 = 54,829.79/x
  3. Step 3: Cross multiply
    74,648.11x = 111,861.41 × 54,829.79
  4. Step 4: Simplify right side
    74,648.11x = 6,133,337,830.52
  5. Step 5: Solve for x
    x = 6,133,337,830.52/74,648.11
  6. Step 6: Final answer
    x = 82,163.33

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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.