Home / 75,447.38-113,171.00-19,287.54

Finding the Fourth Proportional to 75,447.38, 113,171.00 and 19,287.54

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Solution

The fourth proportional to 75,447.38, 113,171.00 and 19,287.54 is: 28,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,447.38 : 113,171.00 = 19,287.54 : x
  2. Step 2: Convert to fraction form
    75,447.38/113,171.00 = 19,287.54/x
  3. Step 3: Cross multiply
    75,447.38x = 113,171.00 × 19,287.54
  4. Step 4: Simplify right side
    75,447.38x = 2,182,790,092.90
  5. Step 5: Solve for x
    x = 2,182,790,092.90/75,447.38
  6. Step 6: Final answer
    x = 28,931.29

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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.