Home / 49,200.20-73,800.30-21,115.48

Finding the Fourth Proportional to 49,200.20, 73,800.30 and 21,115.48

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Solution

The fourth proportional to 49,200.20, 73,800.30 and 21,115.48 is: 31,673.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,200.20 : 73,800.30 = 21,115.48 : x
  2. Step 2: Convert to fraction form
    49,200.20/73,800.30 = 21,115.48/x
  3. Step 3: Cross multiply
    49,200.20x = 73,800.30 × 21,115.48
  4. Step 4: Simplify right side
    49,200.20x = 1,558,328,389.64
  5. Step 5: Solve for x
    x = 1,558,328,389.64/49,200.20
  6. Step 6: Final answer
    x = 31,673.21

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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.