Home / 90,067.14-135,052.92-45,039.24

Finding the Fourth Proportional to 90,067.14, 135,052.92 and 45,039.24

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Solution

The fourth proportional to 90,067.14, 135,052.92 and 45,039.24 is: 67,534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,067.14 : 135,052.92 = 45,039.24 : x
  2. Step 2: Convert to fraction form
    90,067.14/135,052.92 = 45,039.24/x
  3. Step 3: Cross multiply
    90,067.14x = 135,052.92 × 45,039.24
  4. Step 4: Simplify right side
    90,067.14x = 6,082,680,876.58
  5. Step 5: Solve for x
    x = 6,082,680,876.58/90,067.14
  6. Step 6: Final answer
    x = 67,534.96

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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.