Home / 51,905.03-71,629.13-31,480.28

Finding the Fourth Proportional to 51,905.03, 71,629.13 and 31,480.28

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Solution

The fourth proportional to 51,905.03, 71,629.13 and 31,480.28 is: 43,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,905.03 : 71,629.13 = 31,480.28 : x
  2. Step 2: Convert to fraction form
    51,905.03/71,629.13 = 31,480.28/x
  3. Step 3: Cross multiply
    51,905.03x = 71,629.13 × 31,480.28
  4. Step 4: Simplify right side
    51,905.03x = 2,254,904,789.11
  5. Step 5: Solve for x
    x = 2,254,904,789.11/51,905.03
  6. Step 6: Final answer
    x = 43,442.89

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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.