Home / 73,139.22-100,871.73-49,256.10

Finding the Fourth Proportional to 73,139.22, 100,871.73 and 49,256.10

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Solution

The fourth proportional to 73,139.22, 100,871.73 and 49,256.10 is: 67,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,139.22 : 100,871.73 = 49,256.10 : x
  2. Step 2: Convert to fraction form
    73,139.22/100,871.73 = 49,256.10/x
  3. Step 3: Cross multiply
    73,139.22x = 100,871.73 × 49,256.10
  4. Step 4: Simplify right side
    73,139.22x = 4,968,548,020.05
  5. Step 5: Solve for x
    x = 4,968,548,020.05/73,139.22
  6. Step 6: Final answer
    x = 67,932.75

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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.