Home / 75,857.37-113,855.91-38,443.60

Finding the Fourth Proportional to 75,857.37, 113,855.91 and 38,443.60

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Solution

The fourth proportional to 75,857.37, 113,855.91 and 38,443.60 is: 57,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,857.37 : 113,855.91 = 38,443.60 : x
  2. Step 2: Convert to fraction form
    75,857.37/113,855.91 = 38,443.60/x
  3. Step 3: Cross multiply
    75,857.37x = 113,855.91 × 38,443.60
  4. Step 4: Simplify right side
    75,857.37x = 4,377,031,061.68
  5. Step 5: Solve for x
    x = 4,377,031,061.68/75,857.37
  6. Step 6: Final answer
    x = 57,700.80

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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.