Home / 83,814.76-115,723.62-55,579.24

Finding the Fourth Proportional to 83,814.76, 115,723.62 and 55,579.24

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Solution

The fourth proportional to 83,814.76, 115,723.62 and 55,579.24 is: 76,738.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,814.76 : 115,723.62 = 55,579.24 : x
  2. Step 2: Convert to fraction form
    83,814.76/115,723.62 = 55,579.24/x
  3. Step 3: Cross multiply
    83,814.76x = 115,723.62 × 55,579.24
  4. Step 4: Simplify right side
    83,814.76x = 6,431,830,849.65
  5. Step 5: Solve for x
    x = 6,431,830,849.65/83,814.76
  6. Step 6: Final answer
    x = 76,738.64

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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.