Home / 80,112.46-120,139.95-23,942.11

Finding the Fourth Proportional to 80,112.46, 120,139.95 and 23,942.11

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Solution

The fourth proportional to 80,112.46, 120,139.95 and 23,942.11 is: 35,904.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,112.46 : 120,139.95 = 23,942.11 : x
  2. Step 2: Convert to fraction form
    80,112.46/120,139.95 = 23,942.11/x
  3. Step 3: Cross multiply
    80,112.46x = 120,139.95 × 23,942.11
  4. Step 4: Simplify right side
    80,112.46x = 2,876,403,898.29
  5. Step 5: Solve for x
    x = 2,876,403,898.29/80,112.46
  6. Step 6: Final answer
    x = 35,904.58

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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.