Home / 69,408.50-95,776.38-39,191.99

Finding the Fourth Proportional to 69,408.50, 95,776.38 and 39,191.99

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Solution

The fourth proportional to 69,408.50, 95,776.38 and 39,191.99 is: 54,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,408.50 : 95,776.38 = 39,191.99 : x
  2. Step 2: Convert to fraction form
    69,408.50/95,776.38 = 39,191.99/x
  3. Step 3: Cross multiply
    69,408.50x = 95,776.38 × 39,191.99
  4. Step 4: Simplify right side
    69,408.50x = 3,753,666,927.20
  5. Step 5: Solve for x
    x = 3,753,666,927.20/69,408.50
  6. Step 6: Final answer
    x = 54,080.80

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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.