Home / 49,121.30-67,784.45-28,984.50

Finding the Fourth Proportional to 49,121.30, 67,784.45 and 28,984.50

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Solution

The fourth proportional to 49,121.30, 67,784.45 and 28,984.50 is: 39,996.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,121.30 : 67,784.45 = 28,984.50 : x
  2. Step 2: Convert to fraction form
    49,121.30/67,784.45 = 28,984.50/x
  3. Step 3: Cross multiply
    49,121.30x = 67,784.45 × 28,984.50
  4. Step 4: Simplify right side
    49,121.30x = 1,964,698,246.10
  5. Step 5: Solve for x
    x = 1,964,698,246.10/49,121.30
  6. Step 6: Final answer
    x = 39,996.87

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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.