Home / 48,780.12-73,162.26-13,720.44

Finding the Fourth Proportional to 48,780.12, 73,162.26 and 13,720.44

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Solution

The fourth proportional to 48,780.12, 73,162.26 and 13,720.44 is: 20,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,780.12 : 73,162.26 = 13,720.44 : x
  2. Step 2: Convert to fraction form
    48,780.12/73,162.26 = 13,720.44/x
  3. Step 3: Cross multiply
    48,780.12x = 73,162.26 × 13,720.44
  4. Step 4: Simplify right side
    48,780.12x = 1,003,818,398.59
  5. Step 5: Solve for x
    x = 1,003,818,398.59/48,780.12
  6. Step 6: Final answer
    x = 20,578.43

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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.