Home / 86,181.02-129,246.41-33,578.78

Finding the Fourth Proportional to 86,181.02, 129,246.41 and 33,578.78

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Solution

The fourth proportional to 86,181.02, 129,246.41 and 33,578.78 is: 50,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,181.02 : 129,246.41 = 33,578.78 : x
  2. Step 2: Convert to fraction form
    86,181.02/129,246.41 = 33,578.78/x
  3. Step 3: Cross multiply
    86,181.02x = 129,246.41 × 33,578.78
  4. Step 4: Simplify right side
    86,181.02x = 4,339,936,767.18
  5. Step 5: Solve for x
    x = 4,339,936,767.18/86,181.02
  6. Step 6: Final answer
    x = 50,358.38

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1.5x scale

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.