Home / 49,115.04-67,786.48-28,974.20

Finding the Fourth Proportional to 49,115.04, 67,786.48 and 28,974.20

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Solution

The fourth proportional to 49,115.04, 67,786.48 and 28,974.20 is: 39,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,115.04 : 67,786.48 = 28,974.20 : x
  2. Step 2: Convert to fraction form
    49,115.04/67,786.48 = 28,974.20/x
  3. Step 3: Cross multiply
    49,115.04x = 67,786.48 × 28,974.20
  4. Step 4: Simplify right side
    49,115.04x = 1,964,059,028.82
  5. Step 5: Solve for x
    x = 1,964,059,028.82/49,115.04
  6. Step 6: Final answer
    x = 39,988.95

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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.