Home / 81,004.34-111,791.36-45,195.12

Finding the Fourth Proportional to 81,004.34, 111,791.36 and 45,195.12

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Solution

The fourth proportional to 81,004.34, 111,791.36 and 45,195.12 is: 62,372.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,004.34 : 111,791.36 = 45,195.12 : x
  2. Step 2: Convert to fraction form
    81,004.34/111,791.36 = 45,195.12/x
  3. Step 3: Cross multiply
    81,004.34x = 111,791.36 × 45,195.12
  4. Step 4: Simplify right side
    81,004.34x = 5,052,423,704.19
  5. Step 5: Solve for x
    x = 5,052,423,704.19/81,004.34
  6. Step 6: Final answer
    x = 62,372.26

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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.