Home / 57,783.24-86,671.08-18,342.72

Finding the Fourth Proportional to 57,783.24, 86,671.08 and 18,342.72

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Solution

The fourth proportional to 57,783.24, 86,671.08 and 18,342.72 is: 27,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,783.24 : 86,671.08 = 18,342.72 : x
  2. Step 2: Convert to fraction form
    57,783.24/86,671.08 = 18,342.72/x
  3. Step 3: Cross multiply
    57,783.24x = 86,671.08 × 18,342.72
  4. Step 4: Simplify right side
    57,783.24x = 1,589,783,352.54
  5. Step 5: Solve for x
    x = 1,589,783,352.54/57,783.24
  6. Step 6: Final answer
    x = 27,512.88

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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.