Home / 57,729.72-86,629.68-22,669.68

Finding the Fourth Proportional to 57,729.72, 86,629.68 and 22,669.68

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Solution

The fourth proportional to 57,729.72, 86,629.68 and 22,669.68 is: 34,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,729.72 : 86,629.68 = 22,669.68 : x
  2. Step 2: Convert to fraction form
    57,729.72/86,629.68 = 22,669.68/x
  3. Step 3: Cross multiply
    57,729.72x = 86,629.68 × 22,669.68
  4. Step 4: Simplify right side
    57,729.72x = 1,963,867,124.10
  5. Step 5: Solve for x
    x = 1,963,867,124.10/57,729.72
  6. Step 6: Final answer
    x = 34,018.30

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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.