Home / 90,826.99-136,241.25-31,662.55

Finding the Fourth Proportional to 90,826.99, 136,241.25 and 31,662.55

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Solution

The fourth proportional to 90,826.99, 136,241.25 and 31,662.55 is: 47,494.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,826.99 : 136,241.25 = 31,662.55 : x
  2. Step 2: Convert to fraction form
    90,826.99/136,241.25 = 31,662.55/x
  3. Step 3: Cross multiply
    90,826.99x = 136,241.25 × 31,662.55
  4. Step 4: Simplify right side
    90,826.99x = 4,313,745,390.19
  5. Step 5: Solve for x
    x = 4,313,745,390.19/90,826.99
  6. Step 6: Final answer
    x = 47,494.09

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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.