Home / 67,222.74-100,823.31-20,464.68

Finding the Fourth Proportional to 67,222.74, 100,823.31 and 20,464.68

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Solution

The fourth proportional to 67,222.74, 100,823.31 and 20,464.68 is: 30,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,222.74 : 100,823.31 = 20,464.68 : x
  2. Step 2: Convert to fraction form
    67,222.74/100,823.31 = 20,464.68/x
  3. Step 3: Cross multiply
    67,222.74x = 100,823.31 × 20,464.68
  4. Step 4: Simplify right side
    67,222.74x = 2,063,316,775.69
  5. Step 5: Solve for x
    x = 2,063,316,775.69/67,222.74
  6. Step 6: Final answer
    x = 30,693.73

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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.