Home / 90,379.38-135,464.16-34,183.74

Finding the Fourth Proportional to 90,379.38, 135,464.16 and 34,183.74

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Solution

The fourth proportional to 90,379.38, 135,464.16 and 34,183.74 is: 51,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,379.38 : 135,464.16 = 34,183.74 : x
  2. Step 2: Convert to fraction form
    90,379.38/135,464.16 = 34,183.74/x
  3. Step 3: Cross multiply
    90,379.38x = 135,464.16 × 34,183.74
  4. Step 4: Simplify right side
    90,379.38x = 4,630,671,624.76
  5. Step 5: Solve for x
    x = 4,630,671,624.76/90,379.38
  6. Step 6: Final answer
    x = 51,235.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.