Home / 91,163.36-136,727.68-38,609.76

Finding the Fourth Proportional to 91,163.36, 136,727.68 and 38,609.76

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Solution

The fourth proportional to 91,163.36, 136,727.68 and 38,609.76 is: 57,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,163.36 : 136,727.68 = 38,609.76 : x
  2. Step 2: Convert to fraction form
    91,163.36/136,727.68 = 38,609.76/x
  3. Step 3: Cross multiply
    91,163.36x = 136,727.68 × 38,609.76
  4. Step 4: Simplify right side
    91,163.36x = 5,279,022,910.16
  5. Step 5: Solve for x
    x = 5,279,022,910.16/91,163.36
  6. Step 6: Final answer
    x = 57,907.29

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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.