Home / 56,930.78-85,407.33-21,867.74

Finding the Fourth Proportional to 56,930.78, 85,407.33 and 21,867.74

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Solution

The fourth proportional to 56,930.78, 85,407.33 and 21,867.74 is: 32,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,930.78 : 85,407.33 = 21,867.74 : x
  2. Step 2: Convert to fraction form
    56,930.78/85,407.33 = 21,867.74/x
  3. Step 3: Cross multiply
    56,930.78x = 85,407.33 × 21,867.74
  4. Step 4: Simplify right side
    56,930.78x = 1,867,665,286.53
  5. Step 5: Solve for x
    x = 1,867,665,286.53/56,930.78
  6. Step 6: Final answer
    x = 32,805.90

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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.