Home / 45,817.97-68,707.47-20,873.86

Finding the Fourth Proportional to 45,817.97, 68,707.47 and 20,873.86

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Solution

The fourth proportional to 45,817.97, 68,707.47 and 20,873.86 is: 31,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,817.97 : 68,707.47 = 20,873.86 : x
  2. Step 2: Convert to fraction form
    45,817.97/68,707.47 = 20,873.86/x
  3. Step 3: Cross multiply
    45,817.97x = 68,707.47 × 20,873.86
  4. Step 4: Simplify right side
    45,817.97x = 1,434,190,109.73
  5. Step 5: Solve for x
    x = 1,434,190,109.73/45,817.97
  6. Step 6: Final answer
    x = 31,301.91

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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.