Home / 63,745.11-87,876.03-42,198.76

Finding the Fourth Proportional to 63,745.11, 87,876.03 and 42,198.76

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Solution

The fourth proportional to 63,745.11, 87,876.03 and 42,198.76 is: 58,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,745.11 : 87,876.03 = 42,198.76 : x
  2. Step 2: Convert to fraction form
    63,745.11/87,876.03 = 42,198.76/x
  3. Step 3: Cross multiply
    63,745.11x = 87,876.03 × 42,198.76
  4. Step 4: Simplify right side
    63,745.11x = 3,708,259,499.72
  5. Step 5: Solve for x
    x = 3,708,259,499.72/63,745.11
  6. Step 6: Final answer
    x = 58,173.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.