Home / 75,435.45-113,174.36-22,128.69

Finding the Fourth Proportional to 75,435.45, 113,174.36 and 22,128.69

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Solution

The fourth proportional to 75,435.45, 113,174.36 and 22,128.69 is: 33,199.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,435.45 : 113,174.36 = 22,128.69 : x
  2. Step 2: Convert to fraction form
    75,435.45/113,174.36 = 22,128.69/x
  3. Step 3: Cross multiply
    75,435.45x = 113,174.36 × 22,128.69
  4. Step 4: Simplify right side
    75,435.45x = 2,504,400,217.74
  5. Step 5: Solve for x
    x = 2,504,400,217.74/75,435.45
  6. Step 6: Final answer
    x = 33,199.25

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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.