Home / 67,137.06-100,619.46-56,729.64

Finding the Fourth Proportional to 67,137.06, 100,619.46 and 56,729.64

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Solution

The fourth proportional to 67,137.06, 100,619.46 and 56,729.64 is: 85,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,137.06 : 100,619.46 = 56,729.64 : x
  2. Step 2: Convert to fraction form
    67,137.06/100,619.46 = 56,729.64/x
  3. Step 3: Cross multiply
    67,137.06x = 100,619.46 × 56,729.64
  4. Step 4: Simplify right side
    67,137.06x = 5,708,105,742.79
  5. Step 5: Solve for x
    x = 5,708,105,742.79/67,137.06
  6. Step 6: Final answer
    x = 85,021.68

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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.