Home / 83,819.51-115,650.64-53,181.43

Finding the Fourth Proportional to 83,819.51, 115,650.64 and 53,181.43

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Solution

The fourth proportional to 83,819.51, 115,650.64 and 53,181.43 is: 73,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,819.51 : 115,650.64 = 53,181.43 : x
  2. Step 2: Convert to fraction form
    83,819.51/115,650.64 = 53,181.43/x
  3. Step 3: Cross multiply
    83,819.51x = 115,650.64 × 53,181.43
  4. Step 4: Simplify right side
    83,819.51x = 6,150,466,671.97
  5. Step 5: Solve for x
    x = 6,150,466,671.97/83,819.51
  6. Step 6: Final answer
    x = 73,377.51

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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.