Home / 71,077.92-106,638.78-51,132.48

Finding the Fourth Proportional to 71,077.92, 106,638.78 and 51,132.48

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Solution

The fourth proportional to 71,077.92, 106,638.78 and 51,132.48 is: 76,714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,077.92 : 106,638.78 = 51,132.48 : x
  2. Step 2: Convert to fraction form
    71,077.92/106,638.78 = 51,132.48/x
  3. Step 3: Cross multiply
    71,077.92x = 106,638.78 × 51,132.48
  4. Step 4: Simplify right side
    71,077.92x = 5,452,705,285.57
  5. Step 5: Solve for x
    x = 5,452,705,285.57/71,077.92
  6. Step 6: Final answer
    x = 76,714.47

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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.