Home / 57,028.22-78,695.75-31,533.09

Finding the Fourth Proportional to 57,028.22, 78,695.75 and 31,533.09

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Solution

The fourth proportional to 57,028.22, 78,695.75 and 31,533.09 is: 43,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,028.22 : 78,695.75 = 31,533.09 : x
  2. Step 2: Convert to fraction form
    57,028.22/78,695.75 = 31,533.09/x
  3. Step 3: Cross multiply
    57,028.22x = 78,695.75 × 31,533.09
  4. Step 4: Simplify right side
    57,028.22x = 2,481,520,009.70
  5. Step 5: Solve for x
    x = 2,481,520,009.70/57,028.22
  6. Step 6: Final answer
    x = 43,513.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.