Home / 90,379.03-135,567.86-27,198.88

Finding the Fourth Proportional to 90,379.03, 135,567.86 and 27,198.88

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Solution

The fourth proportional to 90,379.03, 135,567.86 and 27,198.88 is: 40,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,379.03 : 135,567.86 = 27,198.88 : x
  2. Step 2: Convert to fraction form
    90,379.03/135,567.86 = 27,198.88/x
  3. Step 3: Cross multiply
    90,379.03x = 135,567.86 × 27,198.88
  4. Step 4: Simplify right side
    90,379.03x = 3,687,293,142.16
  5. Step 5: Solve for x
    x = 3,687,293,142.16/90,379.03
  6. Step 6: Final answer
    x = 40,798.11

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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.