Home / 51,226.08-76,839.12-13,786.23

Finding the Fourth Proportional to 51,226.08, 76,839.12 and 13,786.23

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Solution

The fourth proportional to 51,226.08, 76,839.12 and 13,786.23 is: 20,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,226.08 : 76,839.12 = 13,786.23 : x
  2. Step 2: Convert to fraction form
    51,226.08/76,839.12 = 13,786.23/x
  3. Step 3: Cross multiply
    51,226.08x = 76,839.12 × 13,786.23
  4. Step 4: Simplify right side
    51,226.08x = 1,059,321,712.39
  5. Step 5: Solve for x
    x = 1,059,321,712.39/51,226.08
  6. Step 6: Final answer
    x = 20,679.35

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Double scale
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Similar ratio
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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.