Home / 71,948.64-107,954.05-38,629.80

Finding the Fourth Proportional to 71,948.64, 107,954.05 and 38,629.80

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Solution

The fourth proportional to 71,948.64, 107,954.05 and 38,629.80 is: 57,961.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,948.64 : 107,954.05 = 38,629.80 : x
  2. Step 2: Convert to fraction form
    71,948.64/107,954.05 = 38,629.80/x
  3. Step 3: Cross multiply
    71,948.64x = 107,954.05 × 38,629.80
  4. Step 4: Simplify right side
    71,948.64x = 4,170,242,627.77
  5. Step 5: Solve for x
    x = 4,170,242,627.77/71,948.64
  6. Step 6: Final answer
    x = 57,961.38

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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.