Home / 80,825.12-111,542.14-45,015.14

Finding the Fourth Proportional to 80,825.12, 111,542.14 and 45,015.14

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Solution

The fourth proportional to 80,825.12, 111,542.14 and 45,015.14 is: 62,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,825.12 : 111,542.14 = 45,015.14 : x
  2. Step 2: Convert to fraction form
    80,825.12/111,542.14 = 45,015.14/x
  3. Step 3: Cross multiply
    80,825.12x = 111,542.14 × 45,015.14
  4. Step 4: Simplify right side
    80,825.12x = 5,021,085,048.00
  5. Step 5: Solve for x
    x = 5,021,085,048.00/80,825.12
  6. Step 6: Final answer
    x = 62,122.83

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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.