Home / 76,128.37-114,200.22-26,201.90

Finding the Fourth Proportional to 76,128.37, 114,200.22 and 26,201.90

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Solution

The fourth proportional to 76,128.37, 114,200.22 and 26,201.90 is: 39,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,128.37 : 114,200.22 = 26,201.90 : x
  2. Step 2: Convert to fraction form
    76,128.37/114,200.22 = 26,201.90/x
  3. Step 3: Cross multiply
    76,128.37x = 114,200.22 × 26,201.90
  4. Step 4: Simplify right side
    76,128.37x = 2,992,262,744.42
  5. Step 5: Solve for x
    x = 2,992,262,744.42/76,128.37
  6. Step 6: Final answer
    x = 39,305.49

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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.