Home / 57,005.46-78,667.41-31,854.96

Finding the Fourth Proportional to 57,005.46, 78,667.41 and 31,854.96

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Solution

The fourth proportional to 57,005.46, 78,667.41 and 31,854.96 is: 43,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.46 : 78,667.41 = 31,854.96 : x
  2. Step 2: Convert to fraction form
    57,005.46/78,667.41 = 31,854.96/x
  3. Step 3: Cross multiply
    57,005.46x = 78,667.41 × 31,854.96
  4. Step 4: Simplify right side
    57,005.46x = 2,505,947,198.85
  5. Step 5: Solve for x
    x = 2,505,947,198.85/57,005.46
  6. Step 6: Final answer
    x = 43,959.78

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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.