Home / 56,339.12-84,513.30-18,899.54

Finding the Fourth Proportional to 56,339.12, 84,513.30 and 18,899.54

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Solution

The fourth proportional to 56,339.12, 84,513.30 and 18,899.54 is: 28,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,339.12 : 84,513.30 = 18,899.54 : x
  2. Step 2: Convert to fraction form
    56,339.12/84,513.30 = 18,899.54/x
  3. Step 3: Cross multiply
    56,339.12x = 84,513.30 × 18,899.54
  4. Step 4: Simplify right side
    56,339.12x = 1,597,262,493.88
  5. Step 5: Solve for x
    x = 1,597,262,493.88/56,339.12
  6. Step 6: Final answer
    x = 28,350.86

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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.