Home / 55,178.76-76,147.02-30,028.44

Finding the Fourth Proportional to 55,178.76, 76,147.02 and 30,028.44

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Solution

The fourth proportional to 55,178.76, 76,147.02 and 30,028.44 is: 41,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,178.76 : 76,147.02 = 30,028.44 : x
  2. Step 2: Convert to fraction form
    55,178.76/76,147.02 = 30,028.44/x
  3. Step 3: Cross multiply
    55,178.76x = 76,147.02 × 30,028.44
  4. Step 4: Simplify right side
    55,178.76x = 2,286,576,221.25
  5. Step 5: Solve for x
    x = 2,286,576,221.25/55,178.76
  6. Step 6: Final answer
    x = 41,439.43

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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.