Home / 49,477.20-68,279.40-28,258.80

Finding the Fourth Proportional to 49,477.20, 68,279.40 and 28,258.80

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Solution

The fourth proportional to 49,477.20, 68,279.40 and 28,258.80 is: 38,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,477.20 : 68,279.40 = 28,258.80 : x
  2. Step 2: Convert to fraction form
    49,477.20/68,279.40 = 28,258.80/x
  3. Step 3: Cross multiply
    49,477.20x = 68,279.40 × 28,258.80
  4. Step 4: Simplify right side
    49,477.20x = 1,929,493,908.72
  5. Step 5: Solve for x
    x = 1,929,493,908.72/49,477.20
  6. Step 6: Final answer
    x = 38,997.64

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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.