Home / 78,919.72-108,905.25-43,103.14

Finding the Fourth Proportional to 78,919.72, 108,905.25 and 43,103.14

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Solution

The fourth proportional to 78,919.72, 108,905.25 and 43,103.14 is: 59,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,919.72 : 108,905.25 = 43,103.14 : x
  2. Step 2: Convert to fraction form
    78,919.72/108,905.25 = 43,103.14/x
  3. Step 3: Cross multiply
    78,919.72x = 108,905.25 × 43,103.14
  4. Step 4: Simplify right side
    78,919.72x = 4,694,158,237.49
  5. Step 5: Solve for x
    x = 4,694,158,237.49/78,919.72
  6. Step 6: Final answer
    x = 59,480.17

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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.