Home / 71,819.31-107,824.35-61,356.54

Finding the Fourth Proportional to 71,819.31, 107,824.35 and 61,356.54

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Solution

The fourth proportional to 71,819.31, 107,824.35 and 61,356.54 is: 92,116.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,819.31 : 107,824.35 = 61,356.54 : x
  2. Step 2: Convert to fraction form
    71,819.31/107,824.35 = 61,356.54/x
  3. Step 3: Cross multiply
    71,819.31x = 107,824.35 × 61,356.54
  4. Step 4: Simplify right side
    71,819.31x = 6,615,729,043.75
  5. Step 5: Solve for x
    x = 6,615,729,043.75/71,819.31
  6. Step 6: Final answer
    x = 92,116.30

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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.