Home / 69,171.90-103,693.05-54,170.70

Finding the Fourth Proportional to 69,171.90, 103,693.05 and 54,170.70

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Solution

The fourth proportional to 69,171.90, 103,693.05 and 54,170.70 is: 81,205.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,171.90 : 103,693.05 = 54,170.70 : x
  2. Step 2: Convert to fraction form
    69,171.90/103,693.05 = 54,170.70/x
  3. Step 3: Cross multiply
    69,171.90x = 103,693.05 × 54,170.70
  4. Step 4: Simplify right side
    69,171.90x = 5,617,125,103.64
  5. Step 5: Solve for x
    x = 5,617,125,103.64/69,171.90
  6. Step 6: Final answer
    x = 81,205.30

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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.