Home / 51,138.31-70,553.96-29,902.54

Finding the Fourth Proportional to 51,138.31, 70,553.96 and 29,902.54

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Solution

The fourth proportional to 51,138.31, 70,553.96 and 29,902.54 is: 41,255.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,138.31 : 70,553.96 = 29,902.54 : x
  2. Step 2: Convert to fraction form
    51,138.31/70,553.96 = 29,902.54/x
  3. Step 3: Cross multiply
    51,138.31x = 70,553.96 × 29,902.54
  4. Step 4: Simplify right side
    51,138.31x = 2,109,742,461.55
  5. Step 5: Solve for x
    x = 2,109,742,461.55/51,138.31
  6. Step 6: Final answer
    x = 41,255.62

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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.