Home / 79,198.83-109,294.38-43,390.11

Finding the Fourth Proportional to 79,198.83, 109,294.38 and 43,390.11

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Solution

The fourth proportional to 79,198.83, 109,294.38 and 43,390.11 is: 59,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.83 : 109,294.38 = 43,390.11 : x
  2. Step 2: Convert to fraction form
    79,198.83/109,294.38 = 43,390.11/x
  3. Step 3: Cross multiply
    79,198.83x = 109,294.38 × 43,390.11
  4. Step 4: Simplify right side
    79,198.83x = 4,742,295,170.58
  5. Step 5: Solve for x
    x = 4,742,295,170.58/79,198.83
  6. Step 6: Final answer
    x = 59,878.35

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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.