Home / 55,757.24-76,942.68-30,607.28

Finding the Fourth Proportional to 55,757.24, 76,942.68 and 30,607.28

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Solution

The fourth proportional to 55,757.24, 76,942.68 and 30,607.28 is: 42,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,757.24 : 76,942.68 = 30,607.28 : x
  2. Step 2: Convert to fraction form
    55,757.24/76,942.68 = 30,607.28/x
  3. Step 3: Cross multiply
    55,757.24x = 76,942.68 × 30,607.28
  4. Step 4: Simplify right side
    55,757.24x = 2,355,006,150.71
  5. Step 5: Solve for x
    x = 2,355,006,150.71/55,757.24
  6. Step 6: Final answer
    x = 42,236.78

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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.