Home / 56,791.56-85,176.36-21,722.88

Finding the Fourth Proportional to 56,791.56, 85,176.36 and 21,722.88

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Solution

The fourth proportional to 56,791.56, 85,176.36 and 21,722.88 is: 32,580.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,791.56 : 85,176.36 = 21,722.88 : x
  2. Step 2: Convert to fraction form
    56,791.56/85,176.36 = 21,722.88/x
  3. Step 3: Cross multiply
    56,791.56x = 85,176.36 × 21,722.88
  4. Step 4: Simplify right side
    56,791.56x = 1,850,275,847.12
  5. Step 5: Solve for x
    x = 1,850,275,847.12/56,791.56
  6. Step 6: Final answer
    x = 32,580.12

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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.