Home / 44,139.80-66,238.85-20,768.06

Finding the Fourth Proportional to 44,139.80, 66,238.85 and 20,768.06

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Solution

The fourth proportional to 44,139.80, 66,238.85 and 20,768.06 is: 31,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,139.80 : 66,238.85 = 20,768.06 : x
  2. Step 2: Convert to fraction form
    44,139.80/66,238.85 = 20,768.06/x
  3. Step 3: Cross multiply
    44,139.80x = 66,238.85 × 20,768.06
  4. Step 4: Simplify right side
    44,139.80x = 1,375,652,628.65
  5. Step 5: Solve for x
    x = 1,375,652,628.65/44,139.80
  6. Step 6: Final answer
    x = 31,165.81

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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.