Home / 90,317.88-135,481.14-43,610.04

Finding the Fourth Proportional to 90,317.88, 135,481.14 and 43,610.04

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Solution

The fourth proportional to 90,317.88, 135,481.14 and 43,610.04 is: 65,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,317.88 : 135,481.14 = 43,610.04 : x
  2. Step 2: Convert to fraction form
    90,317.88/135,481.14 = 43,610.04/x
  3. Step 3: Cross multiply
    90,317.88x = 135,481.14 × 43,610.04
  4. Step 4: Simplify right side
    90,317.88x = 5,908,337,934.65
  5. Step 5: Solve for x
    x = 5,908,337,934.65/90,317.88
  6. Step 6: Final answer
    x = 65,417.15

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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.