Home / 77,164.38-115,626.78-53,518.02

Finding the Fourth Proportional to 77,164.38, 115,626.78 and 53,518.02

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Solution

The fourth proportional to 77,164.38, 115,626.78 and 53,518.02 is: 80,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,164.38 : 115,626.78 = 53,518.02 : x
  2. Step 2: Convert to fraction form
    77,164.38/115,626.78 = 53,518.02/x
  3. Step 3: Cross multiply
    77,164.38x = 115,626.78 × 53,518.02
  4. Step 4: Simplify right side
    77,164.38x = 6,188,116,324.58
  5. Step 5: Solve for x
    x = 6,188,116,324.58/77,164.38
  6. Step 6: Final answer
    x = 80,193.95

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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.