Home / 90,324.48-135,493.73-27,139.67

Finding the Fourth Proportional to 90,324.48, 135,493.73 and 27,139.67

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Solution

The fourth proportional to 90,324.48, 135,493.73 and 27,139.67 is: 40,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,324.48 : 135,493.73 = 27,139.67 : x
  2. Step 2: Convert to fraction form
    90,324.48/135,493.73 = 27,139.67/x
  3. Step 3: Cross multiply
    90,324.48x = 135,493.73 × 27,139.67
  4. Step 4: Simplify right side
    90,324.48x = 3,677,255,525.85
  5. Step 5: Solve for x
    x = 3,677,255,525.85/90,324.48
  6. Step 6: Final answer
    x = 40,711.62

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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.