Home / 109,791.36-164,687.04-30,913.92

Finding the Fourth Proportional to 109,791.36, 164,687.04 and 30,913.92

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Solution

The fourth proportional to 109,791.36, 164,687.04 and 30,913.92 is: 46,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,791.36 : 164,687.04 = 30,913.92 : x
  2. Step 2: Convert to fraction form
    109,791.36/164,687.04 = 30,913.92/x
  3. Step 3: Cross multiply
    109,791.36x = 164,687.04 × 30,913.92
  4. Step 4: Simplify right side
    109,791.36x = 5,091,121,979.60
  5. Step 5: Solve for x
    x = 5,091,121,979.60/109,791.36
  6. Step 6: Final answer
    x = 46,370.88

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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.