Home / 57,308.97-85,936.34-21,273.59

Finding the Fourth Proportional to 57,308.97, 85,936.34 and 21,273.59

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Solution

The fourth proportional to 57,308.97, 85,936.34 and 21,273.59 is: 31,900.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,308.97 : 85,936.34 = 21,273.59 : x
  2. Step 2: Convert to fraction form
    57,308.97/85,936.34 = 21,273.59/x
  3. Step 3: Cross multiply
    57,308.97x = 85,936.34 × 21,273.59
  4. Step 4: Simplify right side
    57,308.97x = 1,828,174,247.89
  5. Step 5: Solve for x
    x = 1,828,174,247.89/57,308.97
  6. Step 6: Final answer
    x = 31,900.32

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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.