Home / 81,790.20-122,685.33-25,634.67

Finding the Fourth Proportional to 81,790.20, 122,685.33 and 25,634.67

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Solution

The fourth proportional to 81,790.20, 122,685.33 and 25,634.67 is: 38,452.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,790.20 : 122,685.33 = 25,634.67 : x
  2. Step 2: Convert to fraction form
    81,790.20/122,685.33 = 25,634.67/x
  3. Step 3: Cross multiply
    81,790.20x = 122,685.33 × 25,634.67
  4. Step 4: Simplify right side
    81,790.20x = 3,144,998,044.52
  5. Step 5: Solve for x
    x = 3,144,998,044.52/81,790.20
  6. Step 6: Final answer
    x = 38,452.01

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1.5x scale

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.