Home / 57,839.10-86,742.45-18,408.30

Finding the Fourth Proportional to 57,839.10, 86,742.45 and 18,408.30

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Solution

The fourth proportional to 57,839.10, 86,742.45 and 18,408.30 is: 27,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,839.10 : 86,742.45 = 18,408.30 : x
  2. Step 2: Convert to fraction form
    57,839.10/86,742.45 = 18,408.30/x
  3. Step 3: Cross multiply
    57,839.10x = 86,742.45 × 18,408.30
  4. Step 4: Simplify right side
    57,839.10x = 1,596,781,042.34
  5. Step 5: Solve for x
    x = 1,596,781,042.34/57,839.10
  6. Step 6: Final answer
    x = 27,607.29

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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.