Home / 86,441.90-129,588.88-33,172.10

Finding the Fourth Proportional to 86,441.90, 129,588.88 and 33,172.10

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Solution

The fourth proportional to 86,441.90, 129,588.88 and 33,172.10 is: 49,729.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,441.90 : 129,588.88 = 33,172.10 : x
  2. Step 2: Convert to fraction form
    86,441.90/129,588.88 = 33,172.10/x
  3. Step 3: Cross multiply
    86,441.90x = 129,588.88 × 33,172.10
  4. Step 4: Simplify right side
    86,441.90x = 4,298,735,286.25
  5. Step 5: Solve for x
    x = 4,298,735,286.25/86,441.90
  6. Step 6: Final answer
    x = 49,729.76

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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.