Home / 57,005.38-78,667.54-31,854.88

Finding the Fourth Proportional to 57,005.38, 78,667.54 and 31,854.88

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Solution

The fourth proportional to 57,005.38, 78,667.54 and 31,854.88 is: 43,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,005.38 : 78,667.54 = 31,854.88 : x
  2. Step 2: Convert to fraction form
    57,005.38/78,667.54 = 31,854.88/x
  3. Step 3: Cross multiply
    57,005.38x = 78,667.54 × 31,854.88
  4. Step 4: Simplify right side
    57,005.38x = 2,505,945,046.60
  5. Step 5: Solve for x
    x = 2,505,945,046.60/57,005.38
  6. Step 6: Final answer
    x = 43,959.80

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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.