Home / 90,217.11-124,497.87-49,930.89

Finding the Fourth Proportional to 90,217.11, 124,497.87 and 49,930.89

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Solution

The fourth proportional to 90,217.11, 124,497.87 and 49,930.89 is: 68,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,217.11 : 124,497.87 = 49,930.89 : x
  2. Step 2: Convert to fraction form
    90,217.11/124,497.87 = 49,930.89/x
  3. Step 3: Cross multiply
    90,217.11x = 124,497.87 × 49,930.89
  4. Step 4: Simplify right side
    90,217.11x = 6,216,289,452.20
  5. Step 5: Solve for x
    x = 6,216,289,452.20/90,217.11
  6. Step 6: Final answer
    x = 68,903.66

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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.