Home / 57,027.92-78,698.38-31,186.48

Finding the Fourth Proportional to 57,027.92, 78,698.38 and 31,186.48

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Solution

The fourth proportional to 57,027.92, 78,698.38 and 31,186.48 is: 43,037.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,027.92 : 78,698.38 = 31,186.48 : x
  2. Step 2: Convert to fraction form
    57,027.92/78,698.38 = 31,186.48/x
  3. Step 3: Cross multiply
    57,027.92x = 78,698.38 × 31,186.48
  4. Step 4: Simplify right side
    57,027.92x = 2,454,325,453.90
  5. Step 5: Solve for x
    x = 2,454,325,453.90/57,027.92
  6. Step 6: Final answer
    x = 43,037.26

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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.