Home / 81,037.35-111,786.62-47,496.87

Finding the Fourth Proportional to 81,037.35, 111,786.62 and 47,496.87

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Solution

The fourth proportional to 81,037.35, 111,786.62 and 47,496.87 is: 65,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,037.35 : 111,786.62 = 47,496.87 : x
  2. Step 2: Convert to fraction form
    81,037.35/111,786.62 = 47,496.87/x
  3. Step 3: Cross multiply
    81,037.35x = 111,786.62 × 47,496.87
  4. Step 4: Simplify right side
    81,037.35x = 5,309,514,320.40
  5. Step 5: Solve for x
    x = 5,309,514,320.40/81,037.35
  6. Step 6: Final answer
    x = 65,519.35

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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.