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Finding the Fourth Proportional to 39,764, 54,873.14 and 22,767.68

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Solution

The fourth proportional to 39,764, 54,873.14 and 22,767.68 is: 31,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,764 : 54,873.14 = 22,767.68 : x
  2. Step 2: Convert to fraction form
    39,764/54,873.14 = 22,767.68/x
  3. Step 3: Cross multiply
    39,764x = 54,873.14 × 22,767.68
  4. Step 4: Simplify right side
    39,764x = 1,249,334,092.12
  5. Step 5: Solve for x
    x = 1,249,334,092.12/39,764
  6. Step 6: Final answer
    x = 31,418.72

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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.