Home / 71,973.38-99,323.44-40,144.34

Finding the Fourth Proportional to 71,973.38, 99,323.44 and 40,144.34

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Solution

The fourth proportional to 71,973.38, 99,323.44 and 40,144.34 is: 55,399.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.38 : 99,323.44 = 40,144.34 : x
  2. Step 2: Convert to fraction form
    71,973.38/99,323.44 = 40,144.34/x
  3. Step 3: Cross multiply
    71,973.38x = 99,323.44 × 40,144.34
  4. Step 4: Simplify right side
    71,973.38x = 3,987,273,945.33
  5. Step 5: Solve for x
    x = 3,987,273,945.33/71,973.38
  6. Step 6: Final answer
    x = 55,399.29

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1.5x scale

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.