Home / 55,183.78-82,317.52-53,338.80

Finding the Fourth Proportional to 55,183.78, 82,317.52 and 53,338.80

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Solution

The fourth proportional to 55,183.78, 82,317.52 and 53,338.80 is: 79,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,183.78 : 82,317.52 = 53,338.80 : x
  2. Step 2: Convert to fraction form
    55,183.78/82,317.52 = 53,338.80/x
  3. Step 3: Cross multiply
    55,183.78x = 82,317.52 × 53,338.80
  4. Step 4: Simplify right side
    55,183.78x = 4,390,717,811.11
  5. Step 5: Solve for x
    x = 4,390,717,811.11/55,183.78
  6. Step 6: Final answer
    x = 79,565.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.