Home / 75,016.56-112,427.10-67,072.80

Finding the Fourth Proportional to 75,016.56, 112,427.10 and 67,072.80

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Solution

The fourth proportional to 75,016.56, 112,427.10 and 67,072.80 is: 100,521.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,016.56 : 112,427.10 = 67,072.80 : x
  2. Step 2: Convert to fraction form
    75,016.56/112,427.10 = 67,072.80/x
  3. Step 3: Cross multiply
    75,016.56x = 112,427.10 × 67,072.80
  4. Step 4: Simplify right side
    75,016.56x = 7,540,800,392.88
  5. Step 5: Solve for x
    x = 7,540,800,392.88/75,016.56
  6. Step 6: Final answer
    x = 100,521.81

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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.