Home / 81,180.61-111,956.69-50,968.73

Finding the Fourth Proportional to 81,180.61, 111,956.69 and 50,968.73

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Solution

The fourth proportional to 81,180.61, 111,956.69 and 50,968.73 is: 70,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,180.61 : 111,956.69 = 50,968.73 : x
  2. Step 2: Convert to fraction form
    81,180.61/111,956.69 = 50,968.73/x
  3. Step 3: Cross multiply
    81,180.61x = 111,956.69 × 50,968.73
  4. Step 4: Simplify right side
    81,180.61x = 5,706,290,711.62
  5. Step 5: Solve for x
    x = 5,706,290,711.62/81,180.61
  6. Step 6: Final answer
    x = 70,291.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.