Home / 55,930.17-77,183.62-30,779.67

Finding the Fourth Proportional to 55,930.17, 77,183.62 and 30,779.67

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Solution

The fourth proportional to 55,930.17, 77,183.62 and 30,779.67 is: 42,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,930.17 : 77,183.62 = 30,779.67 : x
  2. Step 2: Convert to fraction form
    55,930.17/77,183.62 = 30,779.67/x
  3. Step 3: Cross multiply
    55,930.17x = 77,183.62 × 30,779.67
  4. Step 4: Simplify right side
    55,930.17x = 2,375,686,565.49
  5. Step 5: Solve for x
    x = 2,375,686,565.49/55,930.17
  6. Step 6: Final answer
    x = 42,475.94

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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.