Home / 76,255.26-114,373.11-20,099.78

Finding the Fourth Proportional to 76,255.26, 114,373.11 and 20,099.78

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Solution

The fourth proportional to 76,255.26, 114,373.11 and 20,099.78 is: 30,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,255.26 : 114,373.11 = 20,099.78 : x
  2. Step 2: Convert to fraction form
    76,255.26/114,373.11 = 20,099.78/x
  3. Step 3: Cross multiply
    76,255.26x = 114,373.11 × 20,099.78
  4. Step 4: Simplify right side
    76,255.26x = 2,298,874,281.32
  5. Step 5: Solve for x
    x = 2,298,874,281.32/76,255.26
  6. Step 6: Final answer
    x = 30,147.09

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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.