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Finding the Fourth Proportional to 73,171.64, 100,977.03 and 39,637.64

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Solution

The fourth proportional to 73,171.64, 100,977.03 and 39,637.64 is: 54,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,171.64 : 100,977.03 = 39,637.64 : x
  2. Step 2: Convert to fraction form
    73,171.64/100,977.03 = 39,637.64/x
  3. Step 3: Cross multiply
    73,171.64x = 100,977.03 × 39,637.64
  4. Step 4: Simplify right side
    73,171.64x = 4,002,491,163.41
  5. Step 5: Solve for x
    x = 4,002,491,163.41/73,171.64
  6. Step 6: Final answer
    x = 54,700.03

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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.