Home / 55,229.04-76,216.24-30,078.72

Finding the Fourth Proportional to 55,229.04, 76,216.24 and 30,078.72

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Solution

The fourth proportional to 55,229.04, 76,216.24 and 30,078.72 is: 41,508.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,229.04 : 76,216.24 = 30,078.72 : x
  2. Step 2: Convert to fraction form
    55,229.04/76,216.24 = 30,078.72/x
  3. Step 3: Cross multiply
    55,229.04x = 76,216.24 × 30,078.72
  4. Step 4: Simplify right side
    55,229.04x = 2,292,486,942.41
  5. Step 5: Solve for x
    x = 2,292,486,942.41/55,229.04
  6. Step 6: Final answer
    x = 41,508.72

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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.