Home / 49,739.78-68,640.67-28,229.74

Finding the Fourth Proportional to 49,739.78, 68,640.67 and 28,229.74

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Solution

The fourth proportional to 49,739.78, 68,640.67 and 28,229.74 is: 38,956.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,739.78 : 68,640.67 = 28,229.74 : x
  2. Step 2: Convert to fraction form
    49,739.78/68,640.67 = 28,229.74/x
  3. Step 3: Cross multiply
    49,739.78x = 68,640.67 × 28,229.74
  4. Step 4: Simplify right side
    49,739.78x = 1,937,708,267.53
  5. Step 5: Solve for x
    x = 1,937,708,267.53/49,739.78
  6. Step 6: Final answer
    x = 38,956.91

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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.