Home / 80,844.87-110,758-77,814.65

Finding the Fourth Proportional to 80,844.87, 110,758 and 77,814.65

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Solution

The fourth proportional to 80,844.87, 110,758 and 77,814.65 is: 106,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,844.87 : 110,758 = 77,814.65 : x
  2. Step 2: Convert to fraction form
    80,844.87/110,758 = 77,814.65/x
  3. Step 3: Cross multiply
    80,844.87x = 110,758 × 77,814.65
  4. Step 4: Simplify right side
    80,844.87x = 8,618,595,004.70
  5. Step 5: Solve for x
    x = 8,618,595,004.70/80,844.87
  6. Step 6: Final answer
    x = 106,606.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.