Home / 81,567.11-122,399.12-44,126.36

Finding the Fourth Proportional to 81,567.11, 122,399.12 and 44,126.36

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Solution

The fourth proportional to 81,567.11, 122,399.12 and 44,126.36 is: 66,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,567.11 : 122,399.12 = 44,126.36 : x
  2. Step 2: Convert to fraction form
    81,567.11/122,399.12 = 44,126.36/x
  3. Step 3: Cross multiply
    81,567.11x = 122,399.12 × 44,126.36
  4. Step 4: Simplify right side
    81,567.11x = 5,401,027,718.17
  5. Step 5: Solve for x
    x = 5,401,027,718.17/81,567.11
  6. Step 6: Final answer
    x = 66,215.75

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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.