Home / 49,746.20-74,619.30-20,148.80

Finding the Fourth Proportional to 49,746.20, 74,619.30 and 20,148.80

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Solution

The fourth proportional to 49,746.20, 74,619.30 and 20,148.80 is: 30,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,746.20 : 74,619.30 = 20,148.80 : x
  2. Step 2: Convert to fraction form
    49,746.20/74,619.30 = 20,148.80/x
  3. Step 3: Cross multiply
    49,746.20x = 74,619.30 × 20,148.80
  4. Step 4: Simplify right side
    49,746.20x = 1,503,489,351.84
  5. Step 5: Solve for x
    x = 1,503,489,351.84/49,746.20
  6. Step 6: Final answer
    x = 30,223.20

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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.