Home / 66,215.50-91,379.18-36,002.85

Finding the Fourth Proportional to 66,215.50, 91,379.18 and 36,002.85

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Solution

The fourth proportional to 66,215.50, 91,379.18 and 36,002.85 is: 49,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215.50 : 91,379.18 = 36,002.85 : x
  2. Step 2: Convert to fraction form
    66,215.50/91,379.18 = 36,002.85/x
  3. Step 3: Cross multiply
    66,215.50x = 91,379.18 × 36,002.85
  4. Step 4: Simplify right side
    66,215.50x = 3,289,910,273.75
  5. Step 5: Solve for x
    x = 3,289,910,273.75/66,215.50
  6. Step 6: Final answer
    x = 49,684.90

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1.5x scale

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.