Home / 77,815.28-107,388.69-43,834.57

Finding the Fourth Proportional to 77,815.28, 107,388.69 and 43,834.57

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Solution

The fourth proportional to 77,815.28, 107,388.69 and 43,834.57 is: 60,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,815.28 : 107,388.69 = 43,834.57 : x
  2. Step 2: Convert to fraction form
    77,815.28/107,388.69 = 43,834.57/x
  3. Step 3: Cross multiply
    77,815.28x = 107,388.69 × 43,834.57
  4. Step 4: Simplify right side
    77,815.28x = 4,707,336,616.16
  5. Step 5: Solve for x
    x = 4,707,336,616.16/77,815.28
  6. Step 6: Final answer
    x = 60,493.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.