Home / 51,489.30-77,249.55-21,518.09

Finding the Fourth Proportional to 51,489.30, 77,249.55 and 21,518.09

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Solution

The fourth proportional to 51,489.30, 77,249.55 and 21,518.09 is: 32,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,489.30 : 77,249.55 = 21,518.09 : x
  2. Step 2: Convert to fraction form
    51,489.30/77,249.55 = 21,518.09/x
  3. Step 3: Cross multiply
    51,489.30x = 77,249.55 × 21,518.09
  4. Step 4: Simplify right side
    51,489.30x = 1,662,262,383.11
  5. Step 5: Solve for x
    x = 1,662,262,383.11/51,489.30
  6. Step 6: Final answer
    x = 32,283.65

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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.