Home / 90,378.60-135,556.32-23,823.96

Finding the Fourth Proportional to 90,378.60, 135,556.32 and 23,823.96

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Solution

The fourth proportional to 90,378.60, 135,556.32 and 23,823.96 is: 35,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,378.60 : 135,556.32 = 23,823.96 : x
  2. Step 2: Convert to fraction form
    90,378.60/135,556.32 = 23,823.96/x
  3. Step 3: Cross multiply
    90,378.60x = 135,556.32 × 23,823.96
  4. Step 4: Simplify right side
    90,378.60x = 3,229,488,345.43
  5. Step 5: Solve for x
    x = 3,229,488,345.43/90,378.60
  6. Step 6: Final answer
    x = 35,732.89

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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.