Home / 109,839.28-164,791.80-57,285.76

Finding the Fourth Proportional to 109,839.28, 164,791.80 and 57,285.76

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Solution

The fourth proportional to 109,839.28, 164,791.80 and 57,285.76 is: 85,945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,839.28 : 164,791.80 = 57,285.76 : x
  2. Step 2: Convert to fraction form
    109,839.28/164,791.80 = 57,285.76/x
  3. Step 3: Cross multiply
    109,839.28x = 164,791.80 × 57,285.76
  4. Step 4: Simplify right side
    109,839.28x = 9,440,223,504.77
  5. Step 5: Solve for x
    x = 9,440,223,504.77/109,839.28
  6. Step 6: Final answer
    x = 85,945.79

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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.