Home / 86,454.24-129,739.68-33,857.16

Finding the Fourth Proportional to 86,454.24, 129,739.68 and 33,857.16

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Solution

The fourth proportional to 86,454.24, 129,739.68 and 33,857.16 is: 50,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,454.24 : 129,739.68 = 33,857.16 : x
  2. Step 2: Convert to fraction form
    86,454.24/129,739.68 = 33,857.16/x
  3. Step 3: Cross multiply
    86,454.24x = 129,739.68 × 33,857.16
  4. Step 4: Simplify right side
    86,454.24x = 4,392,617,104.11
  5. Step 5: Solve for x
    x = 4,392,617,104.11/86,454.24
  6. Step 6: Final answer
    x = 50,808.58

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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.