Home / 81,518.85-122,147.06-50,288.49

Finding the Fourth Proportional to 81,518.85, 122,147.06 and 50,288.49

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Solution

The fourth proportional to 81,518.85, 122,147.06 and 50,288.49 is: 75,351.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,518.85 : 122,147.06 = 50,288.49 : x
  2. Step 2: Convert to fraction form
    81,518.85/122,147.06 = 50,288.49/x
  3. Step 3: Cross multiply
    81,518.85x = 122,147.06 × 50,288.49
  4. Step 4: Simplify right side
    81,518.85x = 6,142,590,953.90
  5. Step 5: Solve for x
    x = 6,142,590,953.90/81,518.85
  6. Step 6: Final answer
    x = 75,351.79

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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.