Home / 85,355.46-128,033.19-29,196.09

Finding the Fourth Proportional to 85,355.46, 128,033.19 and 29,196.09

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Solution

The fourth proportional to 85,355.46, 128,033.19 and 29,196.09 is: 43,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,355.46 : 128,033.19 = 29,196.09 : x
  2. Step 2: Convert to fraction form
    85,355.46/128,033.19 = 29,196.09/x
  3. Step 3: Cross multiply
    85,355.46x = 128,033.19 × 29,196.09
  4. Step 4: Simplify right side
    85,355.46x = 3,738,068,538.23
  5. Step 5: Solve for x
    x = 3,738,068,538.23/85,355.46
  6. Step 6: Final answer
    x = 43,794.14

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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.