Home / 81,304.38-121,867.61-41,863.86

Finding the Fourth Proportional to 81,304.38, 121,867.61 and 41,863.86

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Solution

The fourth proportional to 81,304.38, 121,867.61 and 41,863.86 is: 62,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,304.38 : 121,867.61 = 41,863.86 : x
  2. Step 2: Convert to fraction form
    81,304.38/121,867.61 = 41,863.86/x
  3. Step 3: Cross multiply
    81,304.38x = 121,867.61 × 41,863.86
  4. Step 4: Simplify right side
    81,304.38x = 5,101,848,354.26
  5. Step 5: Solve for x
    x = 5,101,848,354.26/81,304.38
  6. Step 6: Final answer
    x = 62,749.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.