Home / 74,171.40-111,266.78-39,112.36

Finding the Fourth Proportional to 74,171.40, 111,266.78 and 39,112.36

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Solution

The fourth proportional to 74,171.40, 111,266.78 and 39,112.36 is: 58,673.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,171.40 : 111,266.78 = 39,112.36 : x
  2. Step 2: Convert to fraction form
    74,171.40/111,266.78 = 39,112.36/x
  3. Step 3: Cross multiply
    74,171.40x = 111,266.78 × 39,112.36
  4. Step 4: Simplify right side
    74,171.40x = 4,351,906,355.40
  5. Step 5: Solve for x
    x = 4,351,906,355.40/74,171.40
  6. Step 6: Final answer
    x = 58,673.64

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1.5x scale

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.