Home / 66,379.20-91,604.43-36,166.20

Finding the Fourth Proportional to 66,379.20, 91,604.43 and 36,166.20

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Solution

The fourth proportional to 66,379.20, 91,604.43 and 36,166.20 is: 49,909.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,379.20 : 91,604.43 = 36,166.20 : x
  2. Step 2: Convert to fraction form
    66,379.20/91,604.43 = 36,166.20/x
  3. Step 3: Cross multiply
    66,379.20x = 91,604.43 × 36,166.20
  4. Step 4: Simplify right side
    66,379.20x = 3,312,984,136.27
  5. Step 5: Solve for x
    x = 3,312,984,136.27/66,379.20
  6. Step 6: Final answer
    x = 49,909.97

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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.