Home / 81,153.35-111,992.18-45,344.87

Finding the Fourth Proportional to 81,153.35, 111,992.18 and 45,344.87

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Solution

The fourth proportional to 81,153.35, 111,992.18 and 45,344.87 is: 62,576.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,153.35 : 111,992.18 = 45,344.87 : x
  2. Step 2: Convert to fraction form
    81,153.35/111,992.18 = 45,344.87/x
  3. Step 3: Cross multiply
    81,153.35x = 111,992.18 × 45,344.87
  4. Step 4: Simplify right side
    81,153.35x = 5,078,270,843.12
  5. Step 5: Solve for x
    x = 5,078,270,843.12/81,153.35
  6. Step 6: Final answer
    x = 62,576.23

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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.