Home / 43,078.74-64,455.78-38,708.38

Finding the Fourth Proportional to 43,078.74, 64,455.78 and 38,708.38

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Solution

The fourth proportional to 43,078.74, 64,455.78 and 38,708.38 is: 57,916.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,078.74 : 64,455.78 = 38,708.38 : x
  2. Step 2: Convert to fraction form
    43,078.74/64,455.78 = 38,708.38/x
  3. Step 3: Cross multiply
    43,078.74x = 64,455.78 × 38,708.38
  4. Step 4: Simplify right side
    43,078.74x = 2,494,978,825.44
  5. Step 5: Solve for x
    x = 2,494,978,825.44/43,078.74
  6. Step 6: Final answer
    x = 57,916.71

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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.