Home / 55,942.20-77,201.64-30,449.94

Finding the Fourth Proportional to 55,942.20, 77,201.64 and 30,449.94

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Solution

The fourth proportional to 55,942.20, 77,201.64 and 30,449.94 is: 42,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,942.20 : 77,201.64 = 30,449.94 : x
  2. Step 2: Convert to fraction form
    55,942.20/77,201.64 = 30,449.94/x
  3. Step 3: Cross multiply
    55,942.20x = 77,201.64 × 30,449.94
  4. Step 4: Simplify right side
    55,942.20x = 2,350,785,305.90
  5. Step 5: Solve for x
    x = 2,350,785,305.90/55,942.20
  6. Step 6: Final answer
    x = 42,021.68

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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.