Home / 82,662.51-123,924.60-38,321.13

Finding the Fourth Proportional to 82,662.51, 123,924.60 and 38,321.13

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Solution

The fourth proportional to 82,662.51, 123,924.60 and 38,321.13 is: 57,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,662.51 : 123,924.60 = 38,321.13 : x
  2. Step 2: Convert to fraction form
    82,662.51/123,924.60 = 38,321.13/x
  3. Step 3: Cross multiply
    82,662.51x = 123,924.60 × 38,321.13
  4. Step 4: Simplify right side
    82,662.51x = 4,748,930,706.80
  5. Step 5: Solve for x
    x = 4,748,930,706.80/82,662.51
  6. Step 6: Final answer
    x = 57,449.63

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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.