Home / 57,765.12-86,650.77-18,325.38

Finding the Fourth Proportional to 57,765.12, 86,650.77 and 18,325.38

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Solution

The fourth proportional to 57,765.12, 86,650.77 and 18,325.38 is: 27,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.12 : 86,650.77 = 18,325.38 : x
  2. Step 2: Convert to fraction form
    57,765.12/86,650.77 = 18,325.38/x
  3. Step 3: Cross multiply
    57,765.12x = 86,650.77 × 18,325.38
  4. Step 4: Simplify right side
    57,765.12x = 1,587,908,287.54
  5. Step 5: Solve for x
    x = 1,587,908,287.54/57,765.12
  6. Step 6: Final answer
    x = 27,489.05

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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.