Home / 65,331.12-90,155.85-36,651.86

Finding the Fourth Proportional to 65,331.12, 90,155.85 and 36,651.86

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Solution

The fourth proportional to 65,331.12, 90,155.85 and 36,651.86 is: 50,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,331.12 : 90,155.85 = 36,651.86 : x
  2. Step 2: Convert to fraction form
    65,331.12/90,155.85 = 36,651.86/x
  3. Step 3: Cross multiply
    65,331.12x = 90,155.85 × 36,651.86
  4. Step 4: Simplify right side
    65,331.12x = 3,304,379,141.60
  5. Step 5: Solve for x
    x = 3,304,379,141.60/65,331.12
  6. Step 6: Final answer
    x = 50,578.95

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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.