Home / 57,022.56-85,418.88-47,755.20

Finding the Fourth Proportional to 57,022.56, 85,418.88 and 47,755.20

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Solution

The fourth proportional to 57,022.56, 85,418.88 and 47,755.20 is: 71,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,022.56 : 85,418.88 = 47,755.20 : x
  2. Step 2: Convert to fraction form
    57,022.56/85,418.88 = 47,755.20/x
  3. Step 3: Cross multiply
    57,022.56x = 85,418.88 × 47,755.20
  4. Step 4: Simplify right side
    57,022.56x = 4,079,195,698.18
  5. Step 5: Solve for x
    x = 4,079,195,698.18/57,022.56
  6. Step 6: Final answer
    x = 71,536.52

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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.