Home / 71,948.54-107,953.96-38,629.72

Finding the Fourth Proportional to 71,948.54, 107,953.96 and 38,629.72

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Solution

The fourth proportional to 71,948.54, 107,953.96 and 38,629.72 is: 57,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.54 : 107,953.96 = 38,629.72 : x
  2. Step 2: Convert to fraction form
    71,948.54/107,953.96 = 38,629.72/x
  3. Step 3: Cross multiply
    71,948.54x = 107,953.96 × 38,629.72
  4. Step 4: Simplify right side
    71,948.54x = 4,170,231,247.69
  5. Step 5: Solve for x
    x = 4,170,231,247.69/71,948.54
  6. Step 6: Final answer
    x = 57,961.30

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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.