Home / 51,464.97-77,128.20-21,874.86

Finding the Fourth Proportional to 51,464.97, 77,128.20 and 21,874.86

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Solution

The fourth proportional to 51,464.97, 77,128.20 and 21,874.86 is: 32,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,464.97 : 77,128.20 = 21,874.86 : x
  2. Step 2: Convert to fraction form
    51,464.97/77,128.20 = 21,874.86/x
  3. Step 3: Cross multiply
    51,464.97x = 77,128.20 × 21,874.86
  4. Step 4: Simplify right side
    51,464.97x = 1,687,168,577.05
  5. Step 5: Solve for x
    x = 1,687,168,577.05/51,464.97
  6. Step 6: Final answer
    x = 32,782.85

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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.