Home / 49,581.25-74,371.88-12,645.25

Finding the Fourth Proportional to 49,581.25, 74,371.88 and 12,645.25

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Solution

The fourth proportional to 49,581.25, 74,371.88 and 12,645.25 is: 18,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,581.25 : 74,371.88 = 12,645.25 : x
  2. Step 2: Convert to fraction form
    49,581.25/74,371.88 = 12,645.25/x
  3. Step 3: Cross multiply
    49,581.25x = 74,371.88 × 12,645.25
  4. Step 4: Simplify right side
    49,581.25x = 940,451,015.57
  5. Step 5: Solve for x
    x = 940,451,015.57/49,581.25
  6. Step 6: Final answer
    x = 18,967.88

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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.