Home / 57,997.20-86,995.80-47,629.20

Finding the Fourth Proportional to 57,997.20, 86,995.80 and 47,629.20

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Solution

The fourth proportional to 57,997.20, 86,995.80 and 47,629.20 is: 71,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,997.20 : 86,995.80 = 47,629.20 : x
  2. Step 2: Convert to fraction form
    57,997.20/86,995.80 = 47,629.20/x
  3. Step 3: Cross multiply
    57,997.20x = 86,995.80 × 47,629.20
  4. Step 4: Simplify right side
    57,997.20x = 4,143,540,357.36
  5. Step 5: Solve for x
    x = 4,143,540,357.36/57,997.20
  6. Step 6: Final answer
    x = 71,443.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.