Home / 90,190.41-124,462.20-49,903.44

Finding the Fourth Proportional to 90,190.41, 124,462.20 and 49,903.44

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Solution

The fourth proportional to 90,190.41, 124,462.20 and 49,903.44 is: 68,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,190.41 : 124,462.20 = 49,903.44 : x
  2. Step 2: Convert to fraction form
    90,190.41/124,462.20 = 49,903.44/x
  3. Step 3: Cross multiply
    90,190.41x = 124,462.20 × 49,903.44
  4. Step 4: Simplify right side
    90,190.41x = 6,211,091,929.97
  5. Step 5: Solve for x
    x = 6,211,091,929.97/90,190.41
  6. Step 6: Final answer
    x = 68,866.43

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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.