Home / 58,956.38-81,410.39-57,049.90

Finding the Fourth Proportional to 58,956.38, 81,410.39 and 57,049.90

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Solution

The fourth proportional to 58,956.38, 81,410.39 and 57,049.90 is: 78,777.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,956.38 : 81,410.39 = 57,049.90 : x
  2. Step 2: Convert to fraction form
    58,956.38/81,410.39 = 57,049.90/x
  3. Step 3: Cross multiply
    58,956.38x = 81,410.39 × 57,049.90
  4. Step 4: Simplify right side
    58,956.38x = 4,644,454,749.49
  5. Step 5: Solve for x
    x = 4,644,454,749.49/58,956.38
  6. Step 6: Final answer
    x = 78,777.81

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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.