Home / 71,919.34-99,249.18-40,090.24

Finding the Fourth Proportional to 71,919.34, 99,249.18 and 40,090.24

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Solution

The fourth proportional to 71,919.34, 99,249.18 and 40,090.24 is: 55,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,919.34 : 99,249.18 = 40,090.24 : x
  2. Step 2: Convert to fraction form
    71,919.34/99,249.18 = 40,090.24/x
  3. Step 3: Cross multiply
    71,919.34x = 99,249.18 × 40,090.24
  4. Step 4: Simplify right side
    71,919.34x = 3,978,923,446.00
  5. Step 5: Solve for x
    x = 3,978,923,446.00/71,919.34
  6. Step 6: Final answer
    x = 55,324.80

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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.