Home / 79,780.91-119,682.29-35,406.68

Finding the Fourth Proportional to 79,780.91, 119,682.29 and 35,406.68

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Solution

The fourth proportional to 79,780.91, 119,682.29 and 35,406.68 is: 53,114.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,780.91 : 119,682.29 = 35,406.68 : x
  2. Step 2: Convert to fraction form
    79,780.91/119,682.29 = 35,406.68/x
  3. Step 3: Cross multiply
    79,780.91x = 119,682.29 × 35,406.68
  4. Step 4: Simplify right side
    79,780.91x = 4,237,552,033.80
  5. Step 5: Solve for x
    x = 4,237,552,033.80/79,780.91
  6. Step 6: Final answer
    x = 53,114.87

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1.5x scale

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.