Home / 80,489.23-120,733.85-27,898.71

Finding the Fourth Proportional to 80,489.23, 120,733.85 and 27,898.71

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Solution

The fourth proportional to 80,489.23, 120,733.85 and 27,898.71 is: 41,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,489.23 : 120,733.85 = 27,898.71 : x
  2. Step 2: Convert to fraction form
    80,489.23/120,733.85 = 27,898.71/x
  3. Step 3: Cross multiply
    80,489.23x = 120,733.85 × 27,898.71
  4. Step 4: Simplify right side
    80,489.23x = 3,368,318,981.59
  5. Step 5: Solve for x
    x = 3,368,318,981.59/80,489.23
  6. Step 6: Final answer
    x = 41,848.07

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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.