Home / 57,867.78-86,772.96-18,419.77

Finding the Fourth Proportional to 57,867.78, 86,772.96 and 18,419.77

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Solution

The fourth proportional to 57,867.78, 86,772.96 and 18,419.77 is: 27,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,867.78 : 86,772.96 = 18,419.77 : x
  2. Step 2: Convert to fraction form
    57,867.78/86,772.96 = 18,419.77/x
  3. Step 3: Cross multiply
    57,867.78x = 86,772.96 × 18,419.77
  4. Step 4: Simplify right side
    57,867.78x = 1,598,337,439.46
  5. Step 5: Solve for x
    x = 1,598,337,439.46/57,867.78
  6. Step 6: Final answer
    x = 27,620.51

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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.