Home / 74,217.21-111,258.34-38,636.73

Finding the Fourth Proportional to 74,217.21, 111,258.34 and 38,636.73

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Solution

The fourth proportional to 74,217.21, 111,258.34 and 38,636.73 is: 57,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.21 : 111,258.34 = 38,636.73 : x
  2. Step 2: Convert to fraction form
    74,217.21/111,258.34 = 38,636.73/x
  3. Step 3: Cross multiply
    74,217.21x = 111,258.34 × 38,636.73
  4. Step 4: Simplify right side
    74,217.21x = 4,298,658,442.83
  5. Step 5: Solve for x
    x = 4,298,658,442.83/74,217.21
  6. Step 6: Final answer
    x = 57,919.97

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1.5x scale

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.