Home / 78,917.28-108,904.04-43,107.44

Finding the Fourth Proportional to 78,917.28, 108,904.04 and 43,107.44

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Solution

The fourth proportional to 78,917.28, 108,904.04 and 43,107.44 is: 59,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,917.28 : 108,904.04 = 43,107.44 : x
  2. Step 2: Convert to fraction form
    78,917.28/108,904.04 = 43,107.44/x
  3. Step 3: Cross multiply
    78,917.28x = 108,904.04 × 43,107.44
  4. Step 4: Simplify right side
    78,917.28x = 4,694,574,370.06
  5. Step 5: Solve for x
    x = 4,694,574,370.06/78,917.28
  6. Step 6: Final answer
    x = 59,487.28

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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.