Home / 45,133.62-67,716.63-20,171.58

Finding the Fourth Proportional to 45,133.62, 67,716.63 and 20,171.58

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Solution

The fourth proportional to 45,133.62, 67,716.63 and 20,171.58 is: 30,264.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,133.62 : 67,716.63 = 20,171.58 : x
  2. Step 2: Convert to fraction form
    45,133.62/67,716.63 = 20,171.58/x
  3. Step 3: Cross multiply
    45,133.62x = 67,716.63 × 20,171.58
  4. Step 4: Simplify right side
    45,133.62x = 1,365,951,419.38
  5. Step 5: Solve for x
    x = 1,365,951,419.38/45,133.62
  6. Step 6: Final answer
    x = 30,264.61

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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.