Home / 55,930.37-77,183.88-30,779.87

Finding the Fourth Proportional to 55,930.37, 77,183.88 and 30,779.87

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Solution

The fourth proportional to 55,930.37, 77,183.88 and 30,779.87 is: 42,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,930.37 : 77,183.88 = 30,779.87 : x
  2. Step 2: Convert to fraction form
    55,930.37/77,183.88 = 30,779.87/x
  3. Step 3: Cross multiply
    55,930.37x = 77,183.88 × 30,779.87
  4. Step 4: Simplify right side
    55,930.37x = 2,375,709,291.15
  5. Step 5: Solve for x
    x = 2,375,709,291.15/55,930.37
  6. Step 6: Final answer
    x = 42,476.20

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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.