Home / 57,983.40-86,973.73-18,540.86

Finding the Fourth Proportional to 57,983.40, 86,973.73 and 18,540.86

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Solution

The fourth proportional to 57,983.40, 86,973.73 and 18,540.86 is: 27,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,983.40 : 86,973.73 = 18,540.86 : x
  2. Step 2: Convert to fraction form
    57,983.40/86,973.73 = 18,540.86/x
  3. Step 3: Cross multiply
    57,983.40x = 86,973.73 × 18,540.86
  4. Step 4: Simplify right side
    57,983.40x = 1,612,567,751.61
  5. Step 5: Solve for x
    x = 1,612,567,751.61/57,983.40
  6. Step 6: Final answer
    x = 27,810.85

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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.