Home / 71,999.01-99,358.92-40,169.25

Finding the Fourth Proportional to 71,999.01, 99,358.92 and 40,169.25

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Solution

The fourth proportional to 71,999.01, 99,358.92 and 40,169.25 is: 55,433.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,999.01 : 99,358.92 = 40,169.25 : x
  2. Step 2: Convert to fraction form
    71,999.01/99,358.92 = 40,169.25/x
  3. Step 3: Cross multiply
    71,999.01x = 99,358.92 × 40,169.25
  4. Step 4: Simplify right side
    71,999.01x = 3,991,173,297.21
  5. Step 5: Solve for x
    x = 3,991,173,297.21/71,999.01
  6. Step 6: Final answer
    x = 55,433.72

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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.