Home / 55,276.78-76,282.20-31,404.76

Finding the Fourth Proportional to 55,276.78, 76,282.20 and 31,404.76

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Solution

The fourth proportional to 55,276.78, 76,282.20 and 31,404.76 is: 43,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,276.78 : 76,282.20 = 31,404.76 : x
  2. Step 2: Convert to fraction form
    55,276.78/76,282.20 = 31,404.76/x
  3. Step 3: Cross multiply
    55,276.78x = 76,282.20 × 31,404.76
  4. Step 4: Simplify right side
    55,276.78x = 2,395,624,183.27
  5. Step 5: Solve for x
    x = 2,395,624,183.27/55,276.78
  6. Step 6: Final answer
    x = 43,338.71

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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.